kernel/arch/xtensa/lib/umulsidi3.S, branch linux-rolling-stable

xtensa: umulsidi3: fix conditional expression

2023-10-06T11:16:04Z

[ Upstream commit 9aecda97ec3deecbfa7670877c8ddfd3d0fc87c4 ] Even when a variant has one or more of these defines set to 1, the multiplier code paths are not used. Change the expression so that the correct code paths are used. arch/xtensa/lib/umulsidi3.S:44:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef] 44 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL arch/xtensa/lib/umulsidi3.S:145:38: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef] 145 | #if defined(__XTENSA_CALL0_ABI__) && XCHAL_NO_MUL arch/xtensa/lib/umulsidi3.S:159:5: warning: "XCHAL_NO_MUL" is not defined, evaluates to 0 [-Wundef] 159 | #if XCHAL_NO_MUL Fixes: 8939c58d68f9 ("xtensa: add __umulsidi3 helper") Signed-off-by: Randy Dunlap Cc: Chris Zankel Cc: Max Filippov Message-Id: <20230920052139.10570-16-rdunlap@infradead.org> Signed-off-by: Max Filippov Signed-off-by: Sasha Levin

xtensa: add asm-prototypes.h

2023-06-13T02:48:57Z

Move assembly source prototypes from xtensa_ksyms.c to asm/asm-prototypes.h, move corresponding EXPORT_SYMBOLs to the assembly sources and enable HAVE_ASM_MODVERSIONS for xtensa. Signed-off-by: Max Filippov

xtensa: add __umulsidi3 helper

2022-12-07T00:21:26Z

xtensa gcc-13 has changed multiplication handling and may now use __umulsidi3 helper where it used to use __muldi3. As a result building the kernel with the new gcc may fail with the following error: linux/init/main.c:1287: undefined reference to `__umulsidi3' Fix the build by providing __umulsidi3 implementation for xtensa. Cc: stable@vger.kernel.org # 5.18+ Signed-off-by: Max Filippov