Messages in this thread | | | From | Kalle Valo <> | Subject | Re: [PATCH 06/11] brcmfmac: sdio: Fix undefined behavior due to shift overflowing the constant | Date | Tue, 05 Apr 2022 18:25:30 +0300 |
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+ linux-wireless
Borislav Petkov <bp@alien8.de> writes:
> From: Borislav Petkov <bp@suse.de> > > Fix: > > drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c: In function ‘brcmf_sdio_drivestrengthinit’: > drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:3798:2: error: case label does not reduce to an integer constant > case SDIOD_DRVSTR_KEY(BRCM_CC_43143_CHIP_ID, 17): > ^~~~ > drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:3809:2: error: case label does not reduce to an integer constant > case SDIOD_DRVSTR_KEY(BRCM_CC_43362_CHIP_ID, 13): > ^~~~ > > See https://lore.kernel.org/r/YkwQ6%2BtIH8GQpuct@zn.tnic for the gory > details as to why it triggers with older gccs only. > > Signed-off-by: Borislav Petkov <bp@suse.de> > Cc: Arend van Spriel <aspriel@gmail.com> > Cc: Franky Lin <franky.lin@broadcom.com> > Cc: Hante Meuleman <hante.meuleman@broadcom.com> > Cc: Kalle Valo <kvalo@kernel.org> > Cc: "David S. Miller" <davem@davemloft.net> > Cc: Jakub Kicinski <kuba@kernel.org> > Cc: brcm80211-dev-list.pdl@broadcom.com > Cc: netdev@vger.kernel.org > --- > drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c > index ba3c159111d3..d78ccc223709 100644 > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c > @@ -557,7 +557,7 @@ enum brcmf_sdio_frmtype { > BRCMF_SDIO_FT_SUB, > }; > > -#define SDIOD_DRVSTR_KEY(chip, pmu) (((chip) << 16) | (pmu)) > +#define SDIOD_DRVSTR_KEY(chip, pmu) (((unsigned int)(chip) << 16) | (pmu))
Via which tree is this going? I assume not the wireless tree, so:
Acked-by: Kalle Valo <kvalo@kernel.org>
-- https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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