| Message ID | 20220216194935.GA904103@embeddedor (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | d8b1f4193e09acf99dfe423dfe2e654a189f5de8 |
| Delegated to: | Kalle Valo |
| Headers | show |
| Series | [next] brcmfmac: Replace zero-length arrays with flexible-array members | expand |
On Wed, Feb 16, 2022 at 01:49:35PM -0600, Gustavo A. R. Silva wrote: > There is a regular need in the kernel to provide a way to declare > having a dynamically sized set of trailing elements in a structure. > Kernel code should always use “flexible array members”[1] for these > cases. The older style of one-element or zero-length arrays should > no longer be used[2]. > > [1] https://en.wikipedia.org/wiki/Flexible_array_member > [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays > > Link: https://github.com/KSPP/linux/issues/78 > Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org>
"Gustavo A. R. Silva" <gustavoars@kernel.org> wrote: > There is a regular need in the kernel to provide a way to declare > having a dynamically sized set of trailing elements in a structure. > Kernel code should always use “flexible array members”[1] for these > cases. The older style of one-element or zero-length arrays should > no longer be used[2]. > > [1] https://en.wikipedia.org/wiki/Flexible_array_member > [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays > > Link: https://github.com/KSPP/linux/issues/78 > Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> > Reviewed-by: Kees Cook <keescook@chromium.org> Patch applied to wireless-next.git, thanks. d8b1f4193e09 brcmfmac: Replace zero-length arrays with flexible-array members
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h index e69d1e56996f..c87b829adb0d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h @@ -1068,7 +1068,7 @@ struct brcmf_mkeep_alive_pkt_le { __le32 period_msec; __le16 len_bytes; u8 keep_alive_id; - u8 data[0]; + u8 data[]; } __packed; #endif /* FWIL_TYPES_H_ */ diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/xtlv.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/xtlv.h index e1930ce1b642..b2c7ae8966a1 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/xtlv.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/xtlv.h @@ -15,7 +15,7 @@ struct brcmf_xtlv { u16 id; u16 len; - u8 data[0]; + u8 data[]; }; enum brcmf_xtlv_option {
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h | 2 +- drivers/net/wireless/broadcom/brcm80211/brcmfmac/xtlv.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)