From: Christophe Leroy christophe.leroy@csgroup.eu
stable inclusion from stable-v6.6.2 commit 8d5e9875aeb2b168a1e097d9be07148e75476ec9 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8IW7G
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit c7e0d9bb9154c6e6b2ac8746faba27b53393f25e ]
Clang 17 reports:
arch/powerpc/kernel/traps.c:1167:19: error: unused function '__parse_fpscr' [-Werror,-Wunused-function]
__parse_fpscr() is called from two sites. First call is guarded by #ifdef CONFIG_PPC_FPU_REGS
Second call is guarded by CONFIG_MATH_EMULATION which selects CONFIG_PPC_FPU_REGS.
So only define __parse_fpscr() when CONFIG_PPC_FPU_REGS is defined.
Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202309210327.WkqSd5Bq-lkp@intel.com/ Fixes: b6254ced4da6 ("powerpc/signal: Don't manage floating point regs when no FPU") Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://msgid.link/5de2998c57f3983563b27b39228ea9a7229d4110.1695385984.git.c... Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- arch/powerpc/kernel/traps.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 64ff37721fd0..fe3f720c9cd6 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -1164,6 +1164,7 @@ void emulate_single_step(struct pt_regs *regs) __single_step_exception(regs); }
+#ifdef CONFIG_PPC_FPU_REGS static inline int __parse_fpscr(unsigned long fpscr) { int ret = FPE_FLTUNK; @@ -1190,6 +1191,7 @@ static inline int __parse_fpscr(unsigned long fpscr)
return ret; } +#endif
static void parse_fpe(struct pt_regs *regs) {