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tg3: Use slab_build_skb() when needed

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[ Upstream commit 99b415fe89 ]

The tg3 driver will use kmalloc() under some conditions. Check the
frag_size and use slab_build_skb() when frag_size is 0. Silences
the warning introduced by commit ce098da149 ("skbuff: Introduce
slab_build_skb()"):

	Use slab_build_skb() instead
	...
	tg3_poll_work+0x638/0xf90 [tg3]

Fixes: ce098da149 ("skbuff: Introduce slab_build_skb()")
Reported-by: Fiona Ebner <f.ebner@proxmox.com>
Closes: https://lore.kernel.org/all/1bd4cb9c-4eb8-3bdb-3e05-8689817242d1@proxmox.com
Cc: Siva Reddy Kallam <siva.kallam@broadcom.com>
Cc: Prashant Sreedharan <prashant@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20230818175417.never.273-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kees Cook 2023-08-18 10:54:21 -07:00 committed by Greg Kroah-Hartman
parent be7d58c9a2
commit d56f8304bc
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/broadcom/tg3.c
View file

@ -6881,7 +6881,10 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
ri->data = NULL;
skb = build_skb(data, frag_size);
if (frag_size)
skb = build_skb(data, frag_size);
else
skb = slab_build_skb(data);
if (!skb) {
tg3_frag_free(frag_size != 0, data);
goto drop_it_no_recycle;