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| author | Arnd Bergmann <[email protected]> | 2025-02-21 08:57:25 +0000 |
|---|---|---|
| committer | Jon Mason <[email protected]> | 2025-03-18 17:34:59 +0000 |
| commit | aff12700b8dd7422bfe2277696e192af4df9de8f (patch) | |
| tree | 6ef002ef161ccba98b62f3561995186768bebe5d /drivers/net/xen-netback/interface.c | |
| parent | ntb: use 64-bit arithmetic for the MSI doorbell mask (diff) | |
| download | kernel-aff12700b8dd7422bfe2277696e192af4df9de8f.tar.gz kernel-aff12700b8dd7422bfe2277696e192af4df9de8f.zip | |
ntb: reduce stack usage in idt_scan_mws
idt_scan_mws() puts a large fixed-size array on the stack and copies
it into a smaller dynamically allocated array at the end. On 32-bit
targets, the fixed size can easily exceed the warning limit for
possible stack overflow:
drivers/ntb/hw/idt/ntb_hw_idt.c:1041:27: error: stack frame size (1032) exceeds limit (1024) in 'idt_scan_mws' [-Werror,-Wframe-larger-than]
Change it to instead just always use dynamic allocation for the
array from the start. It's too big for the stack, but not actually
all that much for a permanent allocation.
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Dave Jiang <[email protected]>
Reviewed-by: Damien Le Moal <[email protected]>
Signed-off-by: Jon Mason <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions