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received-spf: None (protection.outlook.com: cypress.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: ZkOowNcKrjGyswkWuBSpKr4pIfSA0LBwrEd83sccz8FSlyX2vSfgE55xEH+7cbNHIc4iENtZEHpaJwA+V1Qls0HLI+KJv2IHFyc4L2Ot8CnYrxXXj55BiBfJpvqW6gi56v/h1tQ6NsOK9UMfatgp+CVQobx1bPl5uegrEOD8YnBnExhdPQDakciGKgwgDKqkRBm6Z/pRLBvc9PErHg/clnF8RUfYIsCyapL0RydifrJKPE7b3dKSGEmqJ2sNpzBFkyA2+qLjn0lUfisGWaR5qlMlDt9kPsZImb9+ht0r4/rJ4dEtGdxtk1KhCZaRiVwabY2NgvAHIYaUwSL7JO0qkQGcjOXFxE5usdlXM1U0sPo= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: cypress.com X-MS-Exchange-CrossTenant-Network-Message-Id: f40b6478-09e7-4164-019e-08d64870a7cb X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Nov 2018 07:30:01.6757 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 011addfc-2c09-450d-8938-e0bbc2dd2376 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR0601MB1269 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Wright Feng AOS is a part of the SDIOD core that becomes active when the rest of SDIOD is sleeping to keep SDIO bus alive responding to reduced set of commands. Transaction between AOS and SDIOD is not protected, and if cmd 52 is received in AOS and in the middle of response state changed from AOS to SDIOD, response is corrupted and it causes to SDIO Host controller to hang. Command decode for below chips are disabled in this commit: - 4339 - 4345 - 4354 - 4373 Reviewed-by: Arend van Spriel Signed-off-by: Wright Feng Signed-off-by: Double Lo Signed-off-by: Madhan Mohan R Signed-off-by: Chi-Hsien Lin --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/driv= ers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index e1708e297d07..e5f487b37c5a 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -3354,7 +3354,11 @@ static int brcmf_sdio_download_firmware(struct brcmf= _sdio *bus, =20 static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus) { - if (bus->ci->chip =3D=3D CY_CC_43012_CHIP_ID) + if (bus->ci->chip =3D=3D CY_CC_43012_CHIP_ID || + bus->ci->chip =3D=3D CY_CC_4373_CHIP_ID || + bus->ci->chip =3D=3D BRCM_CC_4339_CHIP_ID || + bus->ci->chip =3D=3D BRCM_CC_4345_CHIP_ID || + bus->ci->chip =3D=3D BRCM_CC_4354_CHIP_ID) return true; else return false; --=20 2.1.0