diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-27 14:42:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-27 14:42:18 -0700 |
| commit | 74807afd3f4eb403e490b5db7af1ece117262f5b (patch) | |
| tree | 2a3cb1fbf3a4b613f4d9b45af88bcda6bdd56713 | |
| parent | cd40fab6dbf4173c1617557be720dcec89657866 (diff) | |
| parent | 8a574cfa2652545eb95595d38ac2a0bb501af0ae (diff) | |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"The final round of fixes. One corner case in the math emulator and
another one in the mcount function for ftrace"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: mcount: Adjust stack pointer for static trace in MIPS32
MIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems
| -rw-r--r-- | arch/mips/kernel/mcount.S | 12 | ||||
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 6 |
2 files changed, 15 insertions, 3 deletions
diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S index 5d25462de8a..2f7c734771f 100644 --- a/arch/mips/kernel/mcount.S +++ b/arch/mips/kernel/mcount.S @@ -129,7 +129,11 @@ NESTED(_mcount, PT_SIZE, ra) nop #endif b ftrace_stub +#ifdef CONFIG_32BIT + addiu sp, sp, 8 +#else nop +#endif static_trace: MCOUNT_SAVE_REGS @@ -139,6 +143,9 @@ static_trace: move a1, AT /* arg2: parent's return address */ MCOUNT_RESTORE_REGS +#ifdef CONFIG_32BIT + addiu sp, sp, 8 +#endif .globl ftrace_stub ftrace_stub: RETURN_BACK @@ -183,6 +190,11 @@ NESTED(ftrace_graph_caller, PT_SIZE, ra) jal prepare_ftrace_return nop MCOUNT_RESTORE_REGS +#ifndef CONFIG_DYNAMIC_FTRACE +#ifdef CONFIG_32BIT + addiu sp, sp, 8 +#endif +#endif RETURN_BACK END(ftrace_graph_caller) diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index bf0fc6b16ad..7a4727795a7 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -650,9 +650,9 @@ static inline int cop1_64bit(struct pt_regs *xcp) #define SIFROMREG(si, x) \ do { \ if (cop1_64bit(xcp)) \ - (si) = get_fpr32(&ctx->fpr[x], 0); \ + (si) = (int)get_fpr32(&ctx->fpr[x], 0); \ else \ - (si) = get_fpr32(&ctx->fpr[(x) & ~1], (x) & 1); \ + (si) = (int)get_fpr32(&ctx->fpr[(x) & ~1], (x) & 1); \ } while (0) #define SITOREG(si, x) \ @@ -667,7 +667,7 @@ do { \ } \ } while (0) -#define SIFROMHREG(si, x) ((si) = get_fpr32(&ctx->fpr[x], 1)) +#define SIFROMHREG(si, x) ((si) = (int)get_fpr32(&ctx->fpr[x], 1)) #define SITOHREG(si, x) \ do { \ |