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c41a15dd4632499b9c1a00871e160276999767d9
Analyze and fix the following issue in the Linux kernel code: KVM: Fix pio trace direction
Problem Details: out = write, in = read, not the other way round. Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bdba1d09a97e..d0ba857cd7cf 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3743,7 +3743,7 @@ static int emulator_pio_in_emulated(int size, unsigned short port, void *val, if (vcpu->arch.pio.count) goto data_avail; - trace_kvm_pio(1, ...
365fb3fdf6769d3553999d8eb6cc2a8c56c747c1
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: rewrite audit_mappings_page() function
Problem Details: There is a bugs in this function, we call gfn_to_pfn() and kvm_mmu_gva_to_gpa_read() in atomic context(kvm_mmu_audit() is called under the spinlock(mmu_lock)'s protection). This patch fix it by: - introduce gfn_to_pfn_atomic instead of gfn_to_pfn - get the mapping gfn from kvm_mmu_page_get_gfn() And ...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 68575dc32ec7..0d91f60af1a8 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3487,15 +3487,6 @@ EXPORT_SYMBOL_GPL(kvm_mmu_get_spte_hierarchy); static const char *audit_msg; -static gva_t canonicalize(gva_t gva) -{ -#ifdef CONFIG_X86_64 -...
bc32ce2152406431acf4daf4a81dc1664bb7b91b
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: fix wrong not write protected sp report
Problem Details: The audit code reports some sp not write protected in current code, it's just the bug in audit_write_protection(), since: - the invalid sp not need write protected - using uninitialize local variable('gfn') - call kvm_mmu_audit() out of mmu_lock's protection Signed-off-by: Xiao Guangrong <xiaoguangro...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 1c784b96dac3..68575dc32ec7 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3708,16 +3708,17 @@ static void audit_write_protection(struct kvm_vcpu *vcpu) struct kvm_memory_slot *slot; unsigned long *rmapp; u64 *spte; - gfn_t gfn; l...
0beb8d660425aab339ff68e6f4d4528739e8fc4f
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: check rmap for every spte
Problem Details: The read-only spte also has reverse mapping, so fix the code to check them, also modify the function name to fit its doing Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 59bf1d9553a7..1c784b96dac3 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3644,40 +3644,38 @@ void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep) struct kvm_mmu_page *rev_sp; gfn_t gfn; - if (is_writable_pte(*sptep)) { - rev_sp ...
9ad17b10011702cb56c5e32e41ecd5fe281c3574
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: fix compile warning in audit code
Problem Details: fix: arch/x86/kvm/mmu.c: In function ‘kvm_mmu_unprotect_page’: arch/x86/kvm/mmu.c:1741: warning: format ‘%lx’ expects type ‘long unsigned int’, but argument 3 has type ‘gfn_t’ arch/x86/kvm/mmu.c:1745: warning: format ‘%lx’ expects type ‘long unsigned int’, but argument 3 has type ‘gfn_t’ arch/x86/kvm/...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index b0037a77e56b..59bf1d9553a7 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1738,11 +1738,11 @@ static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn) LIST_HEAD(invalid_list); int r; - pgprintk("%s: looking for gfn %lx\n", __fun...
989044ee0fdc6c22a11ea1d22e2a3d17463cb564
Analyze and fix the following issue in the Linux kernel code: KVM: PPC: Fix CONFIG_KVM_GUEST && !CONFIG_KVM case
Problem Details: When CONFIG_KVM_GUEST is selected, but CONFIG_KVM is not, we were missing some defines in asm-offsets.c and included too many headers at other places. This patch makes above configuration work. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-o...
```diff diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 37486cafb69d..6d92b4e13ebf 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -48,11 +48,11 @@ #ifdef CONFIG_PPC_ISERIES #include <asm/iseries/alpaca.h> #endif -#ifdef CONFIG_KVM +#...
217fc9cfca21a0bc2f4246183ebd8ee9863b019d
Analyze and fix the following issue in the Linux kernel code: KVM: Fix build error due to 64-bit division in nsec_to_cycles()
Problem Details: Use do_div() instead. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
```diff diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bc96ac9ed912..bdba1d09a97e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -56,6 +56,7 @@ #include <asm/i387.h> #include <asm/xcr.h> #include <asm/pvclock.h> +#include <asm/div64.h> #define MAX_IO_MSRS 256 #define CR0_RESERVED_BITS ...
1d5f066e0b63271b67eac6d3752f8aa96adcbddb
Analyze and fix the following issue in the Linux kernel code: KVM: x86: Fix a possible backwards warp of kvmclock
Problem Details: Kernel time, which advances in discrete steps may progress much slower than TSC. As a result, when kvmclock is adjusted to a new base, the apparent time to the guest, which runs at a much higher, nsec scaled rate based on the current TSC, may have already been observed to have a larger value (kernel_n...
```diff diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 5ab1c3fb34ef..789e9462668f 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -339,6 +339,8 @@ struct kvm_vcpu_arch { unsigned int time_offset; struct page *time_page; u64 last_host_tsc;...
48434c20e18d59001469699fcaaf9cf30b815a20
Analyze and fix the following issue in the Linux kernel code: KVM: x86: Fix deep C-state TSC desynchronization
Problem Details: When CPUs with unstable TSCs enter deep C-state, TSC may stop running. This causes us to require resynchronization. Since we can't tell when this may potentially happen, we assume the worst by forcing re-compensation for it at every point the VCPU task is descheduled. Signed-off-by: Zachary Amsden <...
```diff diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 468fafaed1ae..9396b3f2c594 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1866,7 +1866,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) } kvm_x86_ops->vcpu_load(vcpu, cpu); - if (unlikely(vcpu->cpu != cpu)) { + if (unlike...
45bf21a8ce7a2884f067a702a5c7683684846ce1
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: fix missing percpu counter destroy
Problem Details: commit ad05c88266b4cce1c820928ce8a0fb7690912ba1 (KVM: create aggregate kvm_total_used_mmu_pages value) introduce percpu counter kvm_total_used_mmu_pages but never destroy it, this may cause oops when rmmod & modprobe. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Tim Pepper <lnxninja@lin...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index c2ac7004441a..54a50268cebf 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3185,6 +3185,7 @@ static void mmu_destroy_caches(void) void kvm_mmu_module_exit(void) { mmu_destroy_caches(); + percpu_counter_destroy(&kvm_total_used_mmu_pages)...
80b63faf028fba79e630d3643b0e615bddf4067b
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: fix regression from rework mmu_shrink() code
Problem Details: Latest kvm mmu_shrink code rework makes kernel changes kvm->arch.n_used_mmu_pages/ kvm->arch.n_max_mmu_pages at kvm_mmu_free_page/kvm_mmu_alloc_page, which is called by kvm_mmu_commit_zap_page. So the kvm->arch.n_used_mmu_pages or kvm_mmu_available_pages(vcpu->kvm) is unchanged after kvm_mmu_prepare_za...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 33d7af50cf8e..c2ac7004441a 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1720,10 +1720,9 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int goal_nr_mmu_pages) page = container_of(kvm->arch.active_mmu_pages.prev, ...
0fa6ccbd281221bc7d46aff82d846e1f4c1985df
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: fix REPZ/REPNZ termination condition
Problem Details: EFLAGS.ZF needs to be checked after each iteration, not before. Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 09c9210db75d..aab62d50752e 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2781,28 +2781,10 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ctxt->restart = true; /* All REP prefixes have the same first termination c...
5c56e1cf7a758c4772e2470b4346a8219ec7f44e
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: fix INTn emulation not pushing EFLAGS and CS
Problem Details: emulate_push() only schedules a push; it doesn't actually push anything. Call writeback() to flush out the write. Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index cffe7c2819ed..b89a20ec7c9d 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1232,7 +1232,7 @@ int emulate_int_real(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops, int irq) { struct decode_cache *c = ...
646bab55a278ceb1cf43b1f80d3dd468be62a421
Analyze and fix the following issue in the Linux kernel code: KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()
Problem Details: Add kvm_release_page_clean() after is_error_page() to avoid leakage of error page. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index eee97b5a7400..7656b6df0d8b 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -455,8 +455,10 @@ static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte) int i; hpage = gfn_to_page(vcpu->kvm,...
8c5eee30a942cb3154f14f12407755ed7da74bbc
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: Fix emulate_grp3 return values
Problem Details: This patch lets emulate_grp3() return X86EMUL_* return codes instead of hardcoded ones. Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index f0415eab6591..8617c344405d 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1424,9 +1424,9 @@ static inline int emulate_grp3(struct x86_emulate_ctxt *ctxt, emulate_1op_rax_rdx("idiv", c->src, *rax, *rdx, ctxt->eflags); ...
35c843c4857e2a818d1d951d87c40ee2cf5c1be8
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: fix negative bit offset BitOp instruction emulation
Problem Details: If bit offset operands is a negative number, BitOp instruction will return wrong value. This patch fix it. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 175b41690d6f..5fc441c064ba 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -723,6 +723,22 @@ done: return rc; } +static void fetch_bit_operand(struct decode_cache *c) +{ + long sv, mask; + + if (c->dst.type == OP_MEM) { ...
2b05d71fefc3b83e686bead355c6d35e440c4261
Analyze and fix the following issue in the Linux kernel code: KVM: PPC: Make long relocations be ulong
Problem Details: On Book3S KVM we directly expose some asm pointers to C code as variables. These need to be relocated and thus break on relocatable kernels. To make sure we can at least build, let's mark them as long instead of u32 where 64bit relocations don't work. This fixes the following build error: WARNING: 2...
```diff diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 00cf8b07e502..f04f516c97da 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -132,8 +132,8 @@ extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); extern ...
5302104235f0e9f05781b92a4ab25d20e4537f56
Analyze and fix the following issue in the Linux kernel code: KVM: PPC: Book3S_32 MMU debug compile fixes
Problem Details: Due to previous changes, the Book3S_32 guest MMU code didn't compile properly when enabling debugging. This patch repairs the broken code paths, making it possible to define DEBUG_MMU and friends again. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c index a7d121adc842..5bf4bf8c9e65 100644 --- a/arch/powerpc/kvm/book3s_32_mmu.c +++ b/arch/powerpc/kvm/book3s_32_mmu.c @@ -104,7 +104,7 @@ static hva_t kvmppc_mmu_book3s_32_get_pteg(struct kvmppc_vcpu_book3s *vcpu_book3 pteg = (vc...
34698d8c61bd3fc86b2e99c3d1ad9ef140b3eb0d
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: Fix nop emulation
Problem Details: If a nop instruction is encountered, we jump directly to the done label. This skip updating rip. Break from the switch case instead Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 955d48074648..ddbad15c9486 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2912,7 +2912,7 @@ special_insn: break; case 0x90 ... 0x97: /* nop / xchg reg, rax */ if (c->dst.addr.reg == &c->regs[VCPU_REGS_RAX]) - goto...
7f9b4b75be866de938a3094413a60554f7e66e4d
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: introduce Op3264 for mov cr and mov dr instructions
Problem Details: The operands for these instructions are 32 bits or 64 bits, depending on long mode, and ignoring REX prefixes, or the operand size prefix. Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index a832019138f3..b7adfcc2f74f 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -83,6 +83,7 @@ #define Group (1<<14) /* Bits 3:5 of modrm byte extend opcode */ #define GroupDual (1<<15) /* Alternate decoding of m...
dbe7758482a870f30a86bdeefebf4fc260afef11
Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Check for asid != 0 on nested vmrun
Problem Details: This patch lets a nested vmrun fail if the L1 hypervisor left the asid zero. This fixes the asid_zero unit test. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index a0e5c7e26104..af5b9ea51965 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2019,6 +2019,9 @@ static bool nested_vmcb_checks(struct vmcb *vmcb) if ((vmcb->control.intercept & (1ULL << INTERCEPT_VMRUN)) == 0) return false; + if (vmcb->...
52c65a30a5c6f31cd66dba57c22d18cafa5e327f
Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Check for nested vmrun intercept before emulating vmrun
Problem Details: This patch lets the nested vmrun fail if the L1 hypervisor has not intercepted vmrun. This fixes the "vmrun intercept check" unit test. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 116e0341bf4c..a0e5c7e26104 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2014,6 +2014,14 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm) return true; } +static bool nested_vmcb_checks(struct vmcb *vmcb) +{ + if ((vmcb->co...
4132779b1718f066ec2d06a71c8958039865cd49
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: mark page dirty only when page is really written
Problem Details: Mark page dirty only when this page is really written, it's more exacter, and also can fix dirty page marking in speculation path Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index c07b9a200bc8..ff95d418750d 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -307,24 +307,42 @@ static bool spte_has_volatile_bits(u64 spte) if (!is_shadow_present_pte(spte)) return false; - if (spte & shadow_accessed_mask) + if ((spte ...
9928ff608b1b6ba10fafde85f57970a83a181331
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: fix LMSW able to clear cr0.pe
Problem Details: LMSW is documented not to be able to clear cr0.pe; make it so. Signed-off-by: Avi Kivity <avi@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 904fc1c99b97..4d49514a919e 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3211,7 +3211,7 @@ twobyte_insn: c->dst.val = ops->get_cr(0, ctxt->vcpu); break; case 6: /* lmsw */ - ops->set_cr(0, (ops->get_cr(0, ctxt...
3f6a9d1693deaeef28d98109bc92c98dd94a8523
Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Sync efer back into nested vmcb
Problem Details: This patch fixes a bug in a nested hypervisor that heavily switches between real-mode and long-mode. The problem is fixed by syncing back efer into the guest vmcb on emulated vmexit. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
```diff diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 8a3f9f64f86f..09704a0501d7 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1896,6 +1896,7 @@ static int nested_svm_vmexit(struct vcpu_svm *svm) nested_vmcb->save.ds = vmcb->save.ds; nested_vmcb->save.gdtr = vmcb->save.gdtr; nest...
dfe11481d8f1b6a7354c34cb252ff1a8af233cfe
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: Allow LOCK prefix for NEG and NOT
Problem Details: Opcodes F6/2, F6/3, F7/2, F7/3. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 1ce9c6de0aea..bbe2d097c4ae 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -292,11 +292,11 @@ static u32 group_table[] = { DstMem | SrcNone | ModRM | Mov | Stack, 0, 0, 0, 0, 0, 0, 0, [Group3_Byte*8] = ByteOp | SrcImm |...
91269b8f94eedce1767b2f208d656e5a5683326a
Analyze and fix the following issue in the Linux kernel code: KVM: x86 emulator: fix handling for unemulated instructions
Problem Details: If an instruction is present in the decode tables but not in the execution switch, it will be emulated as a NOP. An example is IRET (0xcf). Fix by adding default: labels to the execution switches. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
```diff diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 66ca98aafdd6..70e47d3593d8 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3028,6 +3028,8 @@ special_insn: if (c->modrm_reg == 5) goto jump_far; goto grp45; + default: + goto cannot_emulate; } writeback: @@ -...
d8692ac012104ebffb343c0bcb4a2b8642c821a6
Analyze and fix the following issue in the Linux kernel code: HID: fix mismerge in hid-lg
Problem Details: Fix wrong merge in hid-lg -- report fixup functions now get pointer to rdesc. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
```diff diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c index 6d3cd7e5fa91..b629fba5a057 100644 --- a/drivers/hid/hid-lg.c +++ b/drivers/hid/hid-lg.c @@ -65,7 +65,7 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc, "report descriptor\n"); rdesc[33] = rdesc[50] = 0x02; } - if ((qui...
d0d68b8693bd16bfbbc93b89f1d9f3351723307c
Analyze and fix the following issue in the Linux kernel code: IB/mlx4: Signal node desc changes to SM by using FW to generate trap 144
Problem Details: The Node Description cannot be changed via MADs (it is read-only). Until now, it was changed in the driver via sysfs, and the new Node Description was simply inserted by the driver into MAD responses (replacing the description returned by FW). System startup scripts use the sysfs interface to change t...
```diff diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 62e8cd6f0371..ac6951d99336 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -272,14 +272,32 @@ out: static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, struct ...
52fae5eead706cb8d604ee634162f6694d75ccad
Analyze and fix the following issue in the Linux kernel code: [media] imon: fix nomouse modprobe option
Problem Details: Pointed out by Bonne Eggleston on the lirc list. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/IR/imon.c b/drivers/media/IR/imon.c index b4d489deadc3..f782a9d72ce6 100644 --- a/drivers/media/IR/imon.c +++ b/drivers/media/IR/imon.c @@ -1004,7 +1004,7 @@ int imon_ir_change_protocol(void *priv, u64 ir_type) case IR_TYPE_UNKNOWN: case IR_TYPE_OTHER: dev_dbg(dev, "Configuring...
428cc7633dedbab05aab80b805d8585572dc6dbf
Analyze and fix the following issue in the Linux kernel code: [media] imon: fix my egregious brown paper bag w/rdev/idev split
Problem Details: Somehow, I managed to screw things up when reworking the rdev/idev split patch from David, and started trying to get ir_input_dev from idev instead of rdev, thus resulting in button presses hanging the system. This fixes it. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho ...
```diff diff --git a/drivers/media/IR/imon.c b/drivers/media/IR/imon.c index 0391c3b86975..bcb282672efa 100644 --- a/drivers/media/IR/imon.c +++ b/drivers/media/IR/imon.c @@ -1477,7 +1477,7 @@ static void imon_incoming_packet(struct imon_context *ictx, bool norelease = false; int i; u64 scancode; - struct input_d...
3201f3dd7370f2d29dfb689ae16f8f5d4066cc33
Analyze and fix the following issue in the Linux kernel code: NFSv4: Fix a regression in decode_getfattr
Problem Details: We don't want to have the mounted_on_fileid overwrite the true fileid. We only return the former if the server didn't supply the true fileid. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
```diff diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index a6b00e84bd1a..707975eebb5d 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -3912,7 +3912,7 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); if (status < 0...
7ad07353003d6ff69fe0b987813bb77b4d5ac23d
Analyze and fix the following issue in the Linux kernel code: NFSv4: Fix up decode_attr_filehandle() to handle the case of empty fh pointer
Problem Details: decode_attr_filehandle still needs to skip the XDR-encoded filehandle if someone passes a null pointer argument. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
```diff diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index ccfb1c92b262..a6b00e84bd1a 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2883,12 +2883,8 @@ static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, stru __be32 *p; int len; - if (fh == NULL) { - bitmap[0] &= ~FATTR4_WOR...
8c7597f6ce212bbc8ca05090e21820ffe9792b3d
Analyze and fix the following issue in the Linux kernel code: nfs: include ratelimit.h, fix nfs4state build error
Problem Details: nfs4state.c uses interfaces from ratelimit.h. It needs to include that header file to fix build errors: fs/nfs/nfs4state.c:1195: warning: type defaults to 'int' in declaration of 'DEFINE_RATELIMIT_STATE' fs/nfs/nfs4state.c:1195: warning: parameter names (without types) in function declaration fs/nfs/...
```diff diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 40028ac2b69c..e0dc06d74b6a 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -46,6 +46,7 @@ #include <linux/kthread.h> #include <linux/module.h> #include <linux/random.h> +#include <linux/ratelimit.h> #include <linux/workqueue.h> #include...
7ad58c028652753814054f4e3ac58f925e7343f4
Analyze and fix the following issue in the Linux kernel code: block: fix use-after-free bug in blk throttle code
Problem Details: blk_throtl_exit() frees the throttle data hanging off the queue in blk_cleanup_queue(), but blk_put_queue() will indirectly dereference this data when calling blk_sync_queue() which in turns calls throtl_shutdown_timer_wq(). Fix this by moving the freeing of the throttle data to when the queue is trul...
```diff diff --git a/block/blk-core.c b/block/blk-core.c index 45141469e89e..51efd835d4cf 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -462,8 +462,6 @@ void blk_cleanup_queue(struct request_queue *q) if (q->elevator) elevator_exit(q->elevator); - blk_throtl_exit(q); - blk_put_queue(q); } EXPORT_SY...
aa7b250c252cc8e6b1daf0e1eada5eba42a1a68d
Analyze and fix the following issue in the Linux kernel code: tracing: Fix 'faild' -> 'failed' typo
Problem Details: Signed-off-by: Joe Perches <joe@perches.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Kosina <trivial@kernel.org> LKML-Reference: <cd9855af60d7d90e9f55fc7afd0ed23fcdaa6f52.1287724261.git.joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
```diff diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 544301d29dee..b8d2852baa4a 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -648,7 +648,7 @@ static int register_trace_probe(struct trace_probe *tp) } ret = register_probe_event(tp); if (ret) { - pr_...
a1b4bd694a803eba49d637de32bb249638ceadb4
Analyze and fix the following issue in the Linux kernel code: ACPI / Battery: Return -ENODEV for unknown values in get_property()
Problem Details: The function acpi_battery_get_property() is called by the power supply framework's function power_supply_show_property() implementing the sysfs interface for power supply devices as the ACPI battery driver's ->get_property() callback. Thus it is supposed to return error code if the value of the given ...
```diff diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 98417201e9ce..ac74a7ddaaa4 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -186,6 +186,7 @@ static int acpi_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply...
e4072a9a9d186fe86293effe8828faa4be75b4a4
Analyze and fix the following issue in the Linux kernel code: x86, printk: Get rid of <0> from stack output
Problem Details: The stack output currently looks like this: 7fffffffffffffff 0000000a00000000 ffffffff81093341 0000000000000046 <0> ffff88003a545fd8 0000000000000000 0000000000000000 00007fffa39769c0 <0> ffff88003e403f58 ffffffff8102fc4c ffff88003e403f58 ffff88003e403f78 The superfluous <0> are caused by recent pri...
```diff diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 0f6376ffa2d9..1bc7f75a5bda 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -82,11 +82,11 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, if (kstack_end(stack)) brea...
66a301c380d4e463424db572b348de4913ec191a
Analyze and fix the following issue in the Linux kernel code: perf probe: Fix format specified for Dwarf_Off parameter
Problem Details: Fixing the following error on 32-bit arches: util/probe-finder.c: In function ‘line_range_search_cb’: util/probe-finder.c:1734: error: format ‘%lx’ expects type ‘long unsigned int’, but argument 3 has type ‘Dwarf_Off’ Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Frederic Weisbecker <fweisbec@gmail.co...
```diff diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index c20bd52833aa..3991d73d1cff 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -1731,7 +1731,8 @@ static int line_range_search_cb(Dwarf_Die *sp_die, void *data) struct line_finder *lf = param->da...
d1e95bb5309f98368dd4fbef6ff3a8f573b24506
Analyze and fix the following issue in the Linux kernel code: perf trace: Fix detection of script extension
Problem Details: The extension starts with the last dot in the name, not the first. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1286723462.2955.206.camel@localhost> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: A...
```diff diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 3ea62199ffe1..deda1a93131e 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -282,7 +282,7 @@ static int parse_scriptname(const struct option *opt __used, script++; } else { script = str; - ext = strchr...
afa842fa641e11a025725883b04d1e144e6bad39
Analyze and fix the following issue in the Linux kernel code: cciss: fix board status waiting code
Problem Details: After a reset, we should first wait for the board to become "not ready", and then wait for it to become "ready", instead of immediately waiting for it to become "ready", and do this waiting *after* restoring PCI config space registers. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Si...
```diff diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index f09e6df15aa7..fd08644bf2a0 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4006,18 +4006,31 @@ static int __devinit cciss_pci_find_memory_BAR(struct pci_dev *pdev, return -ENODEV; } -static int __devinit cciss_wait_for_boar...
74c8e3ad0e5296d65be091bdc0d3ae9f72f7e019
Analyze and fix the following issue in the Linux kernel code: [media] af9015: RC fixes and improvements
Problem Details: Read all remote controller registers at once to reduce USB remote polling traffic. Use .rc_codes() to disable / enable remote polling instead of .rc_query(). Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/dvb/dvb-usb/af9015.c b/drivers/media/dvb/dvb-usb/af9015.c index 759cbf81a4d3..f11743f3ffd8 100644 --- a/drivers/media/dvb/dvb-usb/af9015.c +++ b/drivers/media/dvb/dvb-usb/af9015.c @@ -207,12 +207,18 @@ static int af9015_write_reg(struct dvb_usb_device *d, u16 addr, u8 val) return af...
80872e21b0263f016f2edb7b72dd8be5636d7ca7
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci-of-esdhc: factor out common stuff
Problem Details: Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h new file mode 100644 index 000000000000..afaf1bc4913a --- /dev/null +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -0,0 +1,83 @@ +/* + * Freescale eSDHC controller driver generics for OF and pltfm. + * + * Copyright (c) 2007 Freescale Semicon...
9ffca8300abe4bd7260b77b2f82afb01384faabc
Analyze and fix the following issue in the Linux kernel code: mmc: fix cb710 kconfig dependency warning
Problem Details: Fix kconfig dependency warning to satisfy dependencies: warning: (MMC_CB710 && MMC && PCI) selects CB710_CORE which has unmet direct dependencies (MISC_DEVICES && PCI) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ba...
```diff diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 8de7b9e8fc51..0b7024a4ffc2 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -395,6 +395,7 @@ config MMC_TMIO config MMC_CB710 tristate "ENE CB710 MMC/SD Interface support" depends on PCI + select MISC_DEVICES se...
703aae3d09a4b351866f1a97b2afafb905bdbf1e
Analyze and fix the following issue in the Linux kernel code: mmc: add a file to debugfs for changing host clock at runtime
Problem Details: For debugging power management features it is convenient to have the possibility of changing the MMC host controller clock at runtime. This patch adds a 'clock' file for this under the MMC host root of debugfs. Usage is as follows: # cat /sys/kernel/debug/mmc0/clock 52000000 # echo "1000000000" ...
```diff diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c index 46bc6d7551a3..eed1405fd742 100644 --- a/drivers/mmc/core/debugfs.c +++ b/drivers/mmc/core/debugfs.c @@ -134,6 +134,33 @@ static const struct file_operations mmc_ios_fops = { .release = single_release, }; +static int mmc_clock_opt_ge...
3ab9c8dad6444007700b5949ec80cfdc823d31b4
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: highspeed: check for mmc as well as sd cards
Problem Details: The SD and MMC code set highspeed using different constants. Change the sd driver to recognize this and switch to high speed. Validated code when testing eMMC dual data rate. Signed-off-by: Philip Rakity <prakity@marvell.com> [cjb: changelog + indentation fixes] Signed-off-by: Chris Ball <cjb@laptop.o...
```diff diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index d3f924bcfffd..23358d339a68 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1194,8 +1194,9 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) else ctrl &= ~SDHCI_CTRL_4BITBUS; - if (ios->ti...
f9ee3eab528d2d21c33584bfb86ed1ebf317cb09
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: Add Moorestown device support
Problem Details: This adds the basic identifiers. Due to the various chip quirks it's not enough to make MRST support very useful for earlier steppings but that can follow. (I'm currently trying to verify which steps actually matter outside Intel so I can avoid unneeded stuff going upstream) [Extracted from original...
```diff diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index ec4b81dd493f..55746bac2f44 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -145,6 +145,29 @@ static const struct sdhci_pci_fixes sdhci_cafe = { SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, }; +/* + * ADMA ...
225d85fe7ddca2985548d98e410f7baf4a5d6260
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: Allow the probe handler to override slots
Problem Details: Currently we write it to the chip data, but if the probe handler overrides it we ignore the new value and keep using our cached one. Fix this so that a probe handler can adjust the slot count. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index e8aa99deae9a..4f5d6d00d338 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -818,6 +818,8 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, goto free; } + slots = chip->num_slots; /*...
8364248a829d50495a796e7561aaf9a6976f846c
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: fix "pwr may be used uninitialized" warning
Problem Details: This patch fixes a warning when compiling the sdhci driver: pwr may be used uninitialized in sdhci_set_power Tested with the following compiler versions: 4.2.4 and 4.4.4 Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris...
```diff diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 96c7f6010d0d..d3f924bcfffd 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1050,11 +1050,9 @@ out: static void sdhci_set_power(struct sdhci_host *host, unsigned short power) { - u8 pwr; + u8 pwr = 0; - if (powe...
0f8d8ea64ec7c77ca5beb59534d386fe0235961a
Analyze and fix the following issue in the Linux kernel code: mmc: Fixes for Dual Data Rate (DDR) support
Problem Details: The DDR support patch needs the following fixes: - The block driver does not need to know about DDR, any more than it needs to know about bus width. - Not only the card must be switched to DDR mode. The host controller must also be configured, which is done through the 'set_ios()' function. - D...
```diff diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index aab593480975..a9970504cabb 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -373,8 +373,6 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *req) readcmd = MMC_READ_SINGLE_BLOCK; writecmd =...
4d0b8611cd4da64f075b8e07a126f0eb498fb153
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: mmc_rescan: reduce verbosity
Problem Details: mmc_rescan() includes a pr_info which prints 4 lines each second for hosts configured with MMC_CAP_NEEDS_POLL. This patch enables the message only if CONFIG_MMC_DEBUG is selected. Tested on i.MX51's sdhci-esdhc. Signed-off-by: Eric Bénard <eric@eukrea.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de...
```diff diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 222466df66ff..c5e3c9bf6fdd 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1452,9 +1452,10 @@ void mmc_rescan(struct work_struct *work) mmc_release_host(host); goto out; } +#ifdef CONFIG_MMC_DEBUG pr_info("...
d3c502b84f734b36abdc9d11ec61f00016e98d33
Analyze and fix the following issue in the Linux kernel code: mmc: Makefile: Fix EXTRA_CFLAGS assignment
Problem Details: The EXTRA_CFLAGS assignment in mmc/Makefile was not accomplishing anything because this flag only has effect on sources at the same level as the makefile (i.e., per directory). Since card/, core/, and host/ rely on MMC_DEBUG, the subdir-ccflags-y variant seems to be the appropriate choice. Signed-off-...
```diff diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 9979f5e9765b..12eef393e216 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -2,9 +2,7 @@ # Makefile for the kernel mmc device drivers. # -ifeq ($(CONFIG_MMC_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG -endif +subdir-ccflags-$(CONFIG_MMC_...
412ab659b2bdad6afac8f84daf2a8a393145dcae
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: print out controller name for register debug
Problem Details: In a multi-controller environment it is helpful to know which controller has problems. Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index e335f4f43a4b..829e78a21a0d 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -47,7 +47,8 @@ static void sdhci_finish_command(struct sdhci_host *); static void sdhci_dumpregs(struct sdhci_host *host) { - printk(KERN_...
0957c3339efa333b7895157eb18b9b578394f80c
Analyze and fix the following issue in the Linux kernel code: mmc: sdhci: Make consistent use of CONFIG_MMC_DEBUG for "DEBUG"ging
Problem Details: The "6882a8c sdhci: Add better ADMA error reporting" commit added sdhci_show_adma_error() which is built when DEBUG is defined. Since we already have CONFIG_MMC_DEBUG used elsewhere in this driver, may as well make consistent use of that config knob instead. Signed-off-by: George G. Davis <gdavis@mvi...
```diff diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f608626c4821..e0536175185a 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1427,7 +1427,7 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask) sdhci_finish_command(host); } -#ifdef DEBUG +#ifdef C...
c27d37aed0ba9159c34747b2e1e2c3eddac454f8
Analyze and fix the following issue in the Linux kernel code: mmc_test: fix display of .5 KiB
Problem Details: Append .5 to KiB display when there are an odd number of sectors. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index 5874040b3702..c38a3a84a455 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -539,7 +539,7 @@ static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes, printk(KERN_INFO "%s: Transfer of %...
3d203be833068c0f633878743d0c08d6acd24b58
Analyze and fix the following issue in the Linux kernel code: mmc_test: fix memory allocation segment limits
Problem Details: Correctly allocate memory to meet the host controller driver's maximum segment size and count limits. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index 6580af7b7cb8..5874040b3702 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -318,8 +318,8 @@ static struct mmc_test_mem *mmc_test_alloc_mem(unsigned long min_sz, if (max_page_cnt > limit) max_page_cn...
130067ed15f6e8a1209898646878f5bc0a17d3dd
Analyze and fix the following issue in the Linux kernel code: mmc_test: move files from sysfs to debugfs
Problem Details: As proposed by Greg K-H it is more logical to keep files for the mmc_test driver under debugfs. Additionally this patch brings seq_file API for show() method. It allows to write unlimited data to the file. Example of usage: # mount -t debugfs none /sys/kernel/debug # modprobe mmc_test [ 581...
```diff diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index 0c8b5685d4b7..6580af7b7cb8 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -19,6 +19,10 @@ #include <linux/swap.h> /* For nr_free_buffer_pages() */ #include <linux/list.h> +#include <linux/debugfs.h> ...
c8c8c1bdbe585d9159c4585216451faa4c35e4ec
Analyze and fix the following issue in the Linux kernel code: mmc_test: fix performance tests that go over max_blk_count
Problem Details: The host controller driver limits I/O transfers to maximum transfer size, maximum block count, maximum segment size and maximum segment count. The performance tests were not obeying these limits which meant they would not work with some drivers. This patch fixes that. Signed-off-by: Adrian Hunter <a...
```diff diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index b992725ecbc9..7a38ae9754f6 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -56,7 +56,9 @@ struct mmc_test_mem { * struct mmc_test_area - information for performance tests. * @max_sz: test area size (in...
12578f66b9058e63f193fbfe1552e1d1bfa361bb
Analyze and fix the following issue in the Linux kernel code: mmc: Use snprintf, not sprintf.
Problem Details: Fix an issue found by klockwork. Just paranoia. Signed-off-by: JiebingLi <jiebing.li@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
```diff diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 00073b7c0368..759a105cb216 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -620,7 +620,8 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card) * messages to tell when the card is present. */ - sp...
b6651458d33c309767762a6c3da041573413fd88
Analyze and fix the following issue in the Linux kernel code: drm/i915: Invalidate the to-ring, flush the old-ring when updating domains
Problem Details: When the object has been written to by the gpu it remains on the ring until its flush has been retired. However, when the object is moving to the ring and the associated cache needs to be invalidated, we need to perform the flush on the target ring, not the one it came from (which is NULL in the report...
```diff diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 9290f02215cb..e7f27a5b89dc 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3078,7 +3078,8 @@ i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj, int write) * drm_agp_chipset_f...
3e384ee6c687cb397581ee8f9440fc8220cfac80
Analyze and fix the following issue in the Linux kernel code: ACPI / PM: Fix reference counting of power resources
Problem Details: The reference counting of ACPI power resources is currently broken for a few reasons. First, instead of using a simple reference counter per power resource it uses a list of objects representing refereces to the given power resource from devices. This leads to the second breakage, because it prevents...
```diff diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 844c155aeb0f..67dedeed144c 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -80,18 +80,13 @@ static struct acpi_driver acpi_power_driver = { }, }; -struct acpi_power_reference { - struct list_head node; - struct acpi_device *dev...
8df3fc981dc12d9fdcaef4100a2193b605024d7a
Analyze and fix the following issue in the Linux kernel code: Subject: [PATCH] ACPICA: Fix Scope() op in module level code
Problem Details: Some Panasonic Toughbooks create nodes in module level code. Module level code is the executable AML code outside of control method, for example, below AML code creates a node \_SB.PCI0.GFX0.DD02.CUBL If (\_OSI ("Windows 2006")) { Scope (\_SB.PCI0.GFX0.DD02) { ...
```diff diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index d555b374e314..6b0b5d08d97a 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -300,10 +300,25 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, * we must enter this object into the nam...
bb12588a38e6db85e01dceadff7bc161fc92e7d2
Analyze and fix the following issue in the Linux kernel code: IB/srp: Implement SRP_CRED_REQ and SRP_AER_REQ
Problem Details: This patch adds support for SRP_CRED_REQ to avoid a lockup by targets that use that mechanism to return credits to the initiator. This prevents a lockup observed in the field where we would never add the credits from the SRP_CRED_REQ to our current count, and would therefore never send another command ...
```diff diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index b8b09a4f012a..a54eee9324b6 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -83,6 +83,10 @@ static void srp_remove_one(struct ib_device *device); static void srp_recv_comple...
4363a0b8343747a429df526249d2f3194403365c
Analyze and fix the following issue in the Linux kernel code: [media] tm6000: fix a macro coding style issue
Problem Details: This is a patch to the tm6000-core.c file that fixed up a macros error and error initialise statics to 0 found by the checkpatch.pl tools. [mchehab@redhat.com: removed a merge conflict and add spaces between binary operator] Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua> Signed-off-by: Mauro C...
```diff diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index 0883ea5c08f9..df3f187959b9 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -30,7 +30,7 @@ #include <media/v4l2-common.h> #include <media/tuner.h> -#define USB_TIMEOU...
638054ab0276c40eca7cf49ae107e3d6f67ebf38
Analyze and fix the following issue in the Linux kernel code: tm6000: Remove some ugly debug code
Problem Details: Those time debugs were here just while developing the driver. They are not really needed, as kernel may be configured to print jiffies with printk's. Also, it breaks, if more than one device is connected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index 9b451018ef98..0883ea5c08f9 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -37,7 +37,6 @@ int tm6000_read_write_usb(struct tm6000_core *dev, u8 req_type, u8 req, { in...
fcb9757333df37cf4a7feccef7ef6f5300643864
Analyze and fix the following issue in the Linux kernel code: [media] Nova-S-Plus audio line input
Problem Details: This patch adds audio DMA capture and ALSA mixer elements for the line input jack of the Hauppauge Nova-S-plus DVB-S PCI card. The Nova-S-plus has a WM8775 ADC that is currently not detected. This patch enables this chip and exports volume, balance mute and ALC elements for ALSA mixer controls. [mch...
```diff diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c index 54b7fcd469a8..4aaa47c0eabf 100644 --- a/drivers/media/video/cx88/cx88-alsa.c +++ b/drivers/media/video/cx88/cx88-alsa.c @@ -40,6 +40,7 @@ #include <sound/control.h> #include <sound/initval.h> #include <sound/tlv.h>...
dff2126c548d54b040997257407a69a6cdf7a5b6
Analyze and fix the following issue in the Linux kernel code: ARM: S3C64XX: Fix special function for IISv4 port
Problem Details: When converting to use s3c_gpio_cfgpin_range() the function for the IISv4 block appears to have been typoed as 4 (the keypad) rather than 5 as it should be. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
```diff diff --git a/arch/arm/mach-s3c64xx/dev-audio.c b/arch/arm/mach-s3c64xx/dev-audio.c index e4bb02395d9e..4a5c682a3727 100644 --- a/arch/arm/mach-s3c64xx/dev-audio.c +++ b/arch/arm/mach-s3c64xx/dev-audio.c @@ -48,7 +48,7 @@ static int s3c64xx_i2sv4_cfg_gpio(struct platform_device *pdev) s3c_gpio_cfgpin(S3C64XX_G...
dab30d7f80d7a81ac736c590a81249d2fd323c62
Analyze and fix the following issue in the Linux kernel code: ARM: S3C64XX: Change to using s3c_gpio_cfgall_range()
Problem Details: Change the code setting a range of GPIO pins' configuration and pull state to use the recently introduced s3c_gpio_cfgall_range(). Mop up a few missed s3c_gpio_cfgpin_range() changes. Signed-off-by: Ben Dooks <ben-linux@fluff.org> [kgene.kim@samsung.com: Fix small comments] Signed-off-by: Kukjin Kim ...
```diff diff --git a/arch/arm/mach-s3c64xx/setup-fb-24bpp.c b/arch/arm/mach-s3c64xx/setup-fb-24bpp.c index 000736877df2..3b0dd124d49a 100644 --- a/arch/arm/mach-s3c64xx/setup-fb-24bpp.c +++ b/arch/arm/mach-s3c64xx/setup-fb-24bpp.c @@ -23,15 +23,9 @@ extern void s3c64xx_fb_gpio_setup_24bpp(void) { - unsigned int gpi...
5459148b098e3bbdc24376f1865045189a80a0af
Analyze and fix the following issue in the Linux kernel code: ARM: SAMSUNG: Add s3c_gpio_cfgall_range() function
Problem Details: Add a function to configure a range of GPIOs function and pull in one go, mainly for the SDHCI and framebuffer helpers which tend to do this. Signed-off-by: Ben Dooks <ben-linux@fluff.org> [kgene.kim@samsung.com: Fix small comments] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
```diff diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c index fa180dcc41ce..8a372110a850 100644 --- a/arch/arm/plat-samsung/gpio-config.c +++ b/arch/arm/plat-samsung/gpio-config.c @@ -56,6 +56,22 @@ int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr, } EXPORT_SYMBOL_G...
64c5bd841b5789e118f358b684090585f14be6cf
Analyze and fix the following issue in the Linux kernel code: ARM: S5PV210: Change to using s3c_gpio_cfgpin_range()
Problem Details: Change the code setting ranges of GPIO pins using s3c_gpio_cfgpin() to use the recently introduced s3c_gpio_cfgpin_range(). Signed-off-by: Ben Dooks <ben-linux@fluff.org> [kgene.kim@samsung.com: coding-style fixes] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
```diff diff --git a/arch/arm/mach-s5pv210/dev-audio.c b/arch/arm/mach-s5pv210/dev-audio.c index 21dc6cf955c3..b274b6be7bd5 100644 --- a/arch/arm/mach-s5pv210/dev-audio.c +++ b/arch/arm/mach-s5pv210/dev-audio.c @@ -24,29 +24,15 @@ static int s5pv210_cfg_i2s(struct platform_device *pdev) /* configure GPIO for i2s port...
a682d4cb768381039bdafdc3c04c53cf8d70dcf0
Analyze and fix the following issue in the Linux kernel code: [media] [RFC] radio-mr800: locking fixes
Problem Details: - serialize the suspend and resume functions using the global lock. - do not call usb_autopm_put_interface after a disconnect. - fix a race when disconnecting the device. Reported-by: David Ellingsworth <david@identd.dyndns.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: David Ellingsw...
```diff diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 2f56b26cece9..b540e8072e92 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -284,9 +284,13 @@ static void usb_amradio_disconnect(struct usb_interface *intf) struct amradio_device *...
6b81e14e645016597c81e71cd27ee5c57c3a3c36
Analyze and fix the following issue in the Linux kernel code: nilfs2: eliminate sparse warning - "context imbalance"
Problem Details: insert sparse annotations to fix following sparse warning. fs/nilfs2/segment.c:2681:3: warning: context imbalance in 'nilfs_segctor_kill_thread' - unexpected unlock nilfs_segctor_kill_thread is only called inside sc_state_lock lock. sparse doesn't detect the context and warn "unexpected unlock". __ac...
```diff diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 172ad4257494..d926af626177 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2674,6 +2674,8 @@ static int nilfs_segctor_start_thread(struct nilfs_sc_info *sci) } static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci) + __acq...
abc0b50b6b9a9de8ae210f059598265a5438f2c4
Analyze and fix the following issue in the Linux kernel code: nilfs2: eliminate sparse warnings - "symbol not declared"
Problem Details: change nilfs_dat_commit_free and nilfs_inode_cachep static to fix following warnings fs/nilfs2/super.c:72:19: warning: symbol 'nilfs_inode_cachep' was not declared. Should it be static? fs/nilfs2/dat.c:106:6: warning: symbol 'nilfs_dat_commit_free' was not declared. Should it be static? Signed-off-by...
```diff diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c index ab04a68f425d..49c844dab33a 100644 --- a/fs/nilfs2/dat.c +++ b/fs/nilfs2/dat.c @@ -103,7 +103,8 @@ void nilfs_dat_abort_alloc(struct inode *dat, struct nilfs_palloc_req *req) nilfs_palloc_abort_alloc_entry(dat, req); } -void nilfs_dat_commit_free(struct i...
dda7ae789f1d9b0c2528f7abc37f4316f8fa1e0f
Analyze and fix the following issue in the Linux kernel code: [media] s5p-fimc: dubious one-bit signed bitfields
Problem Details: > From: Dan Carpenter [mailto:error27@gmail.com] > > These are signed so instead of being 1 and 0 as intended they are -1 and > 0. It doesn't cause a bug in the current code but Sparse warns about > it: > > drivers/media/video/s5p-fimc/fimc-core.h:226:28: > error: dubious one-bit signed bitfield > s...
```diff diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h index e3a7c6a0dce2..3e1078516560 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.h +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -222,10 +222,10 @@ struct fimc_effect { * @real_height: source pixel (height...
0e32ee12fbe3fdef23c4a2c8bb135d309f67ebed
Analyze and fix the following issue in the Linux kernel code: [media] go7007: Fix the TW2804 I2C type name
Problem Details: The TW2804 I2C sub-device type name was incorrectly set to wis_twTW2804 for the adlink mpg24 board. Rename it to wis_tw2804. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/staging/go7007/go7007-usb.c b/drivers/staging/go7007/go7007-usb.c index 20ed930b588c..bea9f4d5bc3c 100644 --- a/drivers/staging/go7007/go7007-usb.c +++ b/drivers/staging/go7007/go7007-usb.c @@ -394,7 +394,7 @@ static struct go7007_usb_board board_adlink_mpg24 = { .num_i2c_devs = 1, ....
b8383962c388288b99bcaadcf8a87b049cd56d4a
Analyze and fix the following issue in the Linux kernel code: [media] cx231xx: fix double lock typo
Problem Details: This was supposed to be an unlock on the error path. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Devin Heitmueller <dheitmueller@hauppauge.com> Cc: Palash Bandyopadhyay < palash.bandyopadhyay@conexant.com> Cc: Sri Deevi <Srinivasa.Deevi@conexant.com> Signed-off-by: Mauro Carvalho Chehab...
```diff diff --git a/drivers/media/video/cx231xx/cx231xx-i2c.c b/drivers/media/video/cx231xx/cx231xx-i2c.c index cce74e5a305b..835670623dfb 100644 --- a/drivers/media/video/cx231xx/cx231xx-i2c.c +++ b/drivers/media/video/cx231xx/cx231xx-i2c.c @@ -372,7 +372,7 @@ static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,...
5401c2db1ee0adc89dfb5d4b1a6dc1f2efe38854
Analyze and fix the following issue in the Linux kernel code: [media] cx88: uninitialized variable
Problem Details: Fixes a gcc warning: drivers/media/video/cx88/cx88-video.c:772: warning: ‘core’ may be used uninitialized in this function Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 19c64a7d0985..c19ec71abc03 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -752,7 +752,7 @@ static int video_open(struct file *file) { struct video_device *vdev =...
69194aba3d998af0a51efdf1bde9ce6642b8ab76
Analyze and fix the following issue in the Linux kernel code: [media] Documentation/video4linux/CARDLIST.[cx88|saa7134]
Problem Details: Fix a few troubles at the card entries Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index f2510541373b..42517d9121de 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 @@ -83,3 +83,4 @@ 82 -> WinFast DTV2000 H rev. J [107d:6...
36e9d2605d430d94c60e4b449c737da1798de3b5
Analyze and fix the following issue in the Linux kernel code: [media] mceusb: hook debug print spew directly into parser routine
Problem Details: Provides more complete debug spew, parses individual commands and raw IR data one chunk at a time. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/IR/mceusb.c b/drivers/media/IR/mceusb.c index 0a2981ac7429..9dce684fd231 100644 --- a/drivers/media/IR/mceusb.c +++ b/drivers/media/IR/mceusb.c @@ -421,26 +421,28 @@ static int mceusb_cmdsize(u8 cmd, u8 subcmd) } static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, -...
917167e9a34f7577086ccfcbf07f6fb96a209a31
Analyze and fix the following issue in the Linux kernel code: [media] lirc_igorplugusb: assorted fixups
Problem Details: Tighten up error checking, rename some functions to less generic names, remove unnecessary cruft, add missing debug modparam wiring, and fix up some printk output. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/staging/lirc/lirc_igorplugusb.c b/drivers/staging/lirc/lirc_igorplugusb.c index e680d8897106..b9a4ffd9c7a4 100644 --- a/drivers/staging/lirc/lirc_igorplugusb.c +++ b/drivers/staging/lirc/lirc_igorplugusb.c @@ -57,7 +57,7 @@ #define DRIVER_VERSION "0.1" #define DRIVER_AUTHOR \ "Jan M. ...
c1cbb7029e81894c056680d61c64741bd2ff246f
Analyze and fix the following issue in the Linux kernel code: [media] lirc_dev: rework storage for cdev data
Problem Details: Fixes an oops when an lirc driver that doesn't provide its own fops is unplugged while the lirc cdev is open. Tested with lirc_igorplugusb, with a special thanks to Timo Boettcher for providing the test hardware. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mche...
```diff diff --git a/drivers/media/IR/lirc_dev.c b/drivers/media/IR/lirc_dev.c index 8fdb7e11a138..3ef15625fa84 100644 --- a/drivers/media/IR/lirc_dev.c +++ b/drivers/media/IR/lirc_dev.c @@ -58,13 +58,12 @@ struct irctl { struct task_struct *task; long jiffies_to_wait; - - struct cdev cdev; }; static DEFINE_M...
90dc4cfa2076cdc4df4c2f5dd3cadeefd9557c2c
Analyze and fix the following issue in the Linux kernel code: [media] lirc_dev: fix pointer to owner
Problem Details: If an lirc device driver doesn't specify its own fops, we set set ir->cdev.owner to THIS_MODULE. If it does specify its own fops, we set ir->cdev.owner to ir->d.owner. Subsequent module_{get,put} calls should be using ir->cdev.owner, not ir->d.owner. Signed-off-by: Jarod Wilson <jarod@redhat.com> Sign...
```diff diff --git a/drivers/media/IR/lirc_dev.c b/drivers/media/IR/lirc_dev.c index 560c35609ca4..19a16cef7d65 100644 --- a/drivers/media/IR/lirc_dev.c +++ b/drivers/media/IR/lirc_dev.c @@ -397,7 +397,7 @@ int lirc_unregister_driver(int minor) wake_up_interruptible(&ir->buf->wait_poll); mutex_lock(&ir->irctl_loc...
d63be5f924cf054e7ac18bb2761f9533039fb076
Analyze and fix the following issue in the Linux kernel code: PM / Runtime: fix recursive locking warning of lockdep from rpm_resume()
Problem Details: For device with no_callbacks flag set, its power lock and its parent's power lock may be held nestedly in rpm_resume, so we should take spin_lock_nested(lock, SINGLE_DEPTH_NESTING) to acquire parent power lock to avoid lockdep warning. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Ste...
```diff diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 1dd8676d7f55..126ca492dd08 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -503,7 +503,7 @@ static int rpm_resume(struct device *dev, int rpmflags) * the resume will actually succeed. */ if (de...
dfee3a7b92208b30f77876068aece9ea571270c2
Analyze and fix the following issue in the Linux kernel code: debug_core: refactor locking for master/slave cpus
Problem Details: For quite some time there have been problems with memory barriers and various races with NMI on multi processor systems using the kernel debugger. The algorithm for entering the kernel debug core and resuming kernel execution was racy and had several known edge case problems with attempting to debug s...
```diff diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index bb9497724808..26dbdc37d219 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -110,13 +110,15 @@ static struct kgdb_bkpt kgdb_break[KGDB_MAX_BREAKPOINTS] = { */ atomic_t kgdb_active = ATOMIC_INIT(-1); EXPORT_S...
c1bb9a9c1911036549c5cdfb23f32d7d20ffdc5a
Analyze and fix the following issue in the Linux kernel code: debug_core: disable hw_breakpoints on all cores in kgdb_cpu_enter()
Problem Details: The slave cpus do not have the hw breakpoints disabled upon entry to the debug_core and as a result could cause unrecoverable recursive faults on badly placed breakpoints, or get out of sync with the arch specific hw breakpoint operations. This patch addresses the problem by invoking kgdb_disable_hw_d...
```diff diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 5a3b04d20497..bb9497724808 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -485,6 +485,9 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs) int error; int i, cpu; int trace_on = 0; + +...
91b152aa85bbcf076e269565394c31964f940371
Analyze and fix the following issue in the Linux kernel code: kdb,kgdb: fix sparse fixups
Problem Details: Fix the following sparse warnings: kdb_main.c:328:5: warning: symbol 'kdbgetu64arg' was not declared. Should it be static? kgdboc.c:246:12: warning: symbol 'kgdboc_early_init' was not declared. Should it be static? kgdb.c:652:26: warning: incorrect type in argument 1 (different address spaces) kgdb.c:...
```diff diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 497f97386412..101bf22cf164 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -649,7 +649,7 @@ void kgdb_arch_late(void) if (breakinfo[i].pev) continue; breakinfo[i].pev = register_wide_hw_breakpoint(&attr, NULL); - i...
75d14edee5689716b55afe467acfc13206a31f95
Analyze and fix the following issue in the Linux kernel code: kdb: Fix oops in kdb_unregister
Problem Details: Nothing should try to use kdb_commands directly as sometimes it is null. Instead, use the for_each_kdbcmd() iterator. This particular problem dates back to the initial kdb merge (2.6.35), but at that point nothing was dynamically unregistering commands from the kdb shell. Signed-off-by: Jason Wessel...
```diff diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 5448990a299e..4226f32517d1 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -2826,7 +2826,7 @@ int kdb_unregister(char *cmd) /* * find the command. */ - for (i = 0, kp = kdb_commands; i < kdb_max_c...
fad99fac2627e2cc0ebfe07fcb5046c0b4e103f9
Analyze and fix the following issue in the Linux kernel code: x86,kgdb: fix debugger hw breakpoint test regression in 2.6.35
Problem Details: HW breakpoints events stopped working correctly with kgdb as a result of commit: 018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (Merge commit 'v2.6.33' into perf/core), later commit: ba773f7c510c0b252145933926c636c439889207 (x86,kgdb: Fix hw breakpoint regression) allowed breakpoints to propagate to the debu...
```diff diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 852b81967a37..497f97386412 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -621,7 +621,12 @@ int kgdb_arch_init(void) static void kgdb_hw_overflow_handler(struct perf_event *event, int nmi, struct perf_sample_data *data, ...
c5b77b450a067cd09031caaee72b671810a0fd25
Analyze and fix the following issue in the Linux kernel code: Blackfin: bf51x/bf52x: fix 16/32bit SPORT MMR helpers
Problem Details: The RX/TX address is always the same regardless of the size of the access. That means there is no dedicated "16bit" or "32bit" MMR. Trying to use these currently leads to compile errors. So change everything to use the right MMR define. Signed-off-by: Bob Liu <lliubbo@gmail.com> Signed-off-by: Mike ...
```diff diff --git a/arch/blackfin/mach-bf518/include/mach/cdefBF51x_base.h b/arch/blackfin/mach-bf518/include/mach/cdefBF51x_base.h index 29498e59e71f..e16969f24ffd 100644 --- a/arch/blackfin/mach-bf518/include/mach/cdefBF51x_base.h +++ b/arch/blackfin/mach-bf518/include/mach/cdefBF51x_base.h @@ -262,14 +262,14 @@ #d...
27eb42e924d75e6a85257d431ce7b6e84d5255ef
Analyze and fix the following issue in the Linux kernel code: OMAP: DSS2: OMAPFB: Allow FB_OMAP2 to build without VRFB
Problem Details: FB_OMAP2 can work without VRFB, but currently does not build. Fix this. Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
```diff diff --git a/arch/arm/plat-omap/include/plat/vrfb.h b/arch/arm/plat-omap/include/plat/vrfb.h index d8a03ced3b10..3792bdea2f6d 100644 --- a/arch/arm/plat-omap/include/plat/vrfb.h +++ b/arch/arm/plat-omap/include/plat/vrfb.h @@ -35,6 +35,7 @@ struct vrfb { bool yuv_mode; }; +#ifdef CONFIG_OMAP2_VRFB extern ...
87ba8288670c53f66ce41d8ce292c64674de821e
Analyze and fix the following issue in the Linux kernel code: OMAP: DSS2: OMAPFB: swap front and back porches for both hsync and vsync
Problem Details: Framebuffer's left and right margins are relative to the active pixel area. Front and back porches are relative to the sync area. Left margin was wrongly assigned to front porch (and right to back), this patch fixes it. Signed-off-by: tasskjapp@gmail.com Reviewed-by: Russ.Dill@gmail.com Signed-off-by...
```diff diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index 04034d410d6d..4781421b37f8 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -714,10 +714,10 @@ int check_fb_var(struct fb_info *fbi, struct fb_var_screeni...
cb52e6d9ed9bb9cf74f8396a603ecf12b64c1ec1
Analyze and fix the following issue in the Linux kernel code: xen: improvements to VIRQ_DEBUG output
Problem Details: * Fix bitmask formatting on 64 bit by specifying correct field widths. * Output both global and local masked and pending information. * Indicate in list of pending interrupts whether they are pending in the L2, masked globally and/or masked locally. Signed-off-by: Ian Campbell <ian.campbell@citrix...
```diff diff --git a/drivers/xen/events.c b/drivers/xen/events.c index a3362479cfcf..b0cf80bf4169 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -579,41 +579,75 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id) { struct shared_info *sh = HYPERVISOR_shared_info; int cpu = smp_processor_id()...
0e78340f3c1fc603e8016c8ac304766bcc65506e
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix error handling in btrfs_get_sb
Problem Details: If we failed to find the root subvol id, or the subvol=<name>, we would deactivate the locked super and close the devices. The problem is at this point we have gotten the SB all setup, which includes setting super_operations, so when we'd deactiveate the super, we'd do a close_ctree() which closes the...
```diff diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index afab6ca14d03..d1867cda92a7 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -629,7 +629,7 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, if (IS_ERR(root)) { error = PTR_ERR(root); deactivate_locked_super(s); - goto e...
6d48755d02b150de7f47e7b4753202f2fc9f990f
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix reservation code for mixed block groups
Problem Details: The global reservation stuff tries to add together DATA and METADATA used in order to figure out how much to reserve for everything, but this doesn't work right for mixed block groups. Instead if we have mixed block groups just set data used to 0. Also with mixed block groups we will use bytes_may_us...
```diff diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 4669c6f8a44d..0f27f7b48804 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3213,7 +3213,8 @@ static int reserve_metadata_bytes(struct btrfs_block_rsv *block_rsv, spin_lock(&space_info->lock); unused = space_info->bytes...
89a55897a2fbbceb94480952784004bf23911d38
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix df regression
Problem Details: The new ENOSPC stuff breaks out the raid types which breaks the way we were reporting df to the system. This fixes it back so that Available is the total space available to data and used is the actual bytes used by the filesystem. This means that Available is Total - data used - all of the metadata sp...
```diff diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 29c20092847e..014fd52c01bf 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -675,7 +675,8 @@ struct btrfs_block_group_item { struct btrfs_space_info { u64 flags; - u64 total_bytes; /* total bytes in the space */ + u64 total_bytes; /* total bytes...
bf5fc093c5b625e4259203f1cee7ca73488a5620
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix the df ioctl to report raid types
Problem Details: The new ENOSPC stuff broke the df ioctl since we no longer create seperate space info's for each RAID type. So instead, loop through each space info's raid lists so we can get the right RAID information which will allow the df ioctl to tell us RAID types again. Thanks, Signed-off-by: Josef Bacik <jo...
```diff diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 9254b3d58dbe..db0b8fc59235 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1879,6 +1879,22 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) return 0; } +static void get_block_group_info(struct list_head *groups_l...
bc487fb341af05120bccb9f59ce76302391dcc77
Analyze and fix the following issue in the Linux kernel code: omap: complete removal of machine_desc.io_pg_offst and .phys_io
Problem Details: Commit ab69bcd66fb4be64edfc767365cb9eb084961246 (arm: remove machine_desc.io_pg_offst and .phys_io) could not update the new boards in the omap tree. This causes the build of omap2plus_defconfig to fail. Fix this. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.or...
```diff diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c index c49319ff5c36..1dd303e9a267 100644 --- a/arch/arm/mach-omap2/board-cm-t3517.c +++ b/arch/arm/mach-omap2/board-cm-t3517.c @@ -283,8 +283,6 @@ static void __init cm_t3517_init(void) } MACHINE_START(CM_T3517, "Compula...
cb74f0223fcf9b2db8f57d9ee5fa4738c066f3c6
Analyze and fix the following issue in the Linux kernel code: omap: UART: fix wakeup registers for OMAP24xx UART2
Problem Details: On OMAP24xx, UART2 WKEN and WKST registers are in PM_WKEN2_CORE and PM_WKST2_CORE respecitvely. Fix the OMAP2 register init to use the correct registers on OMAP24xx. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
```diff diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index ba8a5cc8eae8..becf0e38ef7e 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -515,14 +515,8 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) uart->padconf = padconf; } else if (cpu_i...
8267f16e8b67ea272f37f7072933dc0d3839693d
Analyze and fix the following issue in the Linux kernel code: dma: imx-dma: fix signedness bug
Problem Details: mxdmac->channel was unsigned, so check (imxdmac->channel < 0) for failed imx_dma_request_by_prio() made no sence. Explicitly check signed values. Also, fix uninitialzed use of ret. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: D...
```diff diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 346be6218058..f629e4961af5 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -335,8 +335,10 @@ static int __init imxdma_probe(struct platform_device *pdev) imxdmac->imxdma_channel = imx_dma_request_by_prio("dmaengine", DM...
71226a4dbf84e6134be6876b71af04bb5d7353be
Analyze and fix the following issue in the Linux kernel code: imx: only select HAVE_CAN_FLEXCAN if CAN is enabled
Problem Details: This fixes a warning warning: (IMX_HAVE_PLATFORM_FLEXCAN && ARCH_MXC) selects HAVE_CAN_FLEXCAN which has unmet direct dependencies (NET && CAN) (The warning in general exists since 246cf9c (kbuild: Warn on selecting symbols with unmet direct dependencies) which was reverted between 71ebc01 and b1...
```diff diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig index 404799487f17..26e745b110a7 100644 --- a/arch/arm/plat-mxc/devices/Kconfig +++ b/arch/arm/plat-mxc/devices/Kconfig @@ -6,7 +6,7 @@ config IMX_HAVE_PLATFORM_FEC default y if ARCH_MX25 || SOC_IMX27 || ARCH_MX35 || ARCH_MX51 ...