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powerpc: Only define __parse_fpscr() when required

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[ Upstream commit c7e0d9bb91 ]

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: b6254ced4d ("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.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe Leroy 2023-09-22 14:33:13 +02:00 committed by Greg Kroah-Hartman
parent 01f62c6bd2
commit 863a9c3fde
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/kernel/traps.c
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@ -1148,6 +1148,7 @@ static 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;
@ -1174,6 +1175,7 @@ static inline int __parse_fpscr(unsigned long fpscr)
return ret;
}
#endif
static void parse_fpe(struct pt_regs *regs)
{