Arnd Bergmann 4a5aaa1747 mtd: lpddr: fix excessive stack usage with clang ... [ Upstream commit 3e1b6469f8 ] Building lpddr2_nvm with clang can result in a giant stack usage in one function: drivers/mtd/lpddr/lpddr2_nvm.c:399:12: error: stack frame size of 1144 bytes in function 'lpddr2_nvm_probe' [-Werror,-Wframe-larger-than=] The problem is that clang decides to build a copy of the mtd_info structure on the stack and then do a memcpy() into the actual version. It shouldn't really do it that way, but it's not strictly a bug either. As a workaround, use a static const version of the structure to assign most of the members upfront and then only set the few members that require runtime knowledge at probe time. Fixes: 96ba9dd657 ("mtd: lpddr: add driver for LPDDR2-NVM PCM memories") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20200505140136.263461-1-arnd@arndb.de Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:57:46 +01:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
lpddr2_nvm.c	mtd: lpddr: fix excessive stack usage with clang	2020-10-29 09:57:46 +01:00
lpddr_cmds.c	mtd: lpddr: Fix a double free in probe()	2020-04-23 10:36:45 +02:00
qinfo_probe.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1	2019-05-21 11:28:39 +02:00