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| author | Randy Dunlap <rdunlap@infradead.org> | 2022-03-15 01:10:45 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-05-04 18:20:42 +0200 |
| commit | 1ef64b1e89e6d4018da46e08ffc32779a31160c7 (patch) | |
| tree | 642588661a91cefbadf4485ecda573e07e9ba5f6 /drivers/firmware/arm_scmi/clock.c | |
| parent | x86: Fix return value of __setup handlers (diff) | |
| download | linux-1ef64b1e89e6d4018da46e08ffc32779a31160c7.tar.xz linux-1ef64b1e89e6d4018da46e08ffc32779a31160c7.zip | |
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
Clean up control_va_addr_alignment():
a. Make '=' required instead of optional (as documented).
b. Print a warning if an invalid option value is used.
c. Return 1 from the __setup handler when an invalid option value is
used. This prevents the kernel from polluting init's (limited)
environment space with the entire string.
Fixes: dfb09f9b7ab0 ("x86, amd: Avoid cache aliasing penalties on AMD family 15h")
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Link: https://lore.kernel.org/r/20220315001045.7680-1-rdunlap@infradead.org
Diffstat (limited to 'drivers/firmware/arm_scmi/clock.c')
0 files changed, 0 insertions, 0 deletions