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brcmsmac: Use kvmalloc() for ucode allocations

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[ Upstream commit 6c3efbe77b ]

The ucode chunk might be relatively large and the allocation with
kmalloc() may fail occasionally.  Since the data isn't DMA-transferred
but by manual loops, we can use vmalloc instead of kmalloc.
For a better performance, though, kvmalloc() would be the best choice
in such a case, so let's replace with it.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1103431
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Takashi Iwai
2018-09-13 08:15:17 +02:00
committed by Greg Kroah-Hartman
parent 2980b6a813
commit 636cbdec5c
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
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@@ -1578,10 +1578,10 @@ int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
if (le32_to_cpu(hdr->idx) == idx) {
pdata = wl->fw.fw_bin[i]->data +
le32_to_cpu(hdr->offset);
*pbuf = kmemdup(pdata, len, GFP_KERNEL);
*pbuf = kvmalloc(len, GFP_KERNEL);
if (*pbuf == NULL)
goto fail;
memcpy(*pbuf, pdata, len);
return 0;
}
}
@@ -1629,7 +1629,7 @@ int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
*/
void brcms_ucode_free_buf(void *p)
{
kfree(p);
kvfree(p);
}
/*