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| author | Arnd Bergmann <arnd@arndb.de> | 2017-11-30 06:08:05 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-22 15:45:02 +0100 |
| commit | c4fd9c8d38575cfcd90dce8162d52ac74158cefc (patch) | |
| tree | e29c0d4090eab5192e3c9aa40a0532a9568f3af1 /firmware/vicam | |
| parent | 193cfa7632a490a86faa3af1969d63c63873d8be (diff) | |
media: r820t: fix r820t_write_reg for KASAN
commit 16c3ada89cff9a8c2a0eea34ffa1aa20af3f6008 upstream.
With CONFIG_KASAN, we get an overly long stack frame due to inlining
the register access functions:
drivers/media/tuners/r820t.c: In function 'generic_set_freq.isra.7':
drivers/media/tuners/r820t.c:1334:1: error: the frame size of 2880 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
This is caused by a gcc bug that has now been fixed in gcc-8.
To work around the problem, we can pass the register data
through a local variable that older gcc versions can optimize
out as well.
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'firmware/vicam')
0 files changed, 0 insertions, 0 deletions