On 07/09/2015 10:13 AM, Vineet Gupta wrote:
There's already a generic implementation so use that instead.
There is or there was? If there is now I am fine with this patch, but if
it already was there the author might have had a reason for adding a
local function and I would like to hear that reason.
---
I'm not sure if the driver usage of atomic_or?() is correct in terms of
storage size of @val for 64 bit arches.
Assuming LP64 programming model for linux on say x86_64: atomic_or()
callers in this driver use long (sana 64 bit) storage and pass it to
atomic_orr/atomic_or which downcasts it to 32 bits. Is that OK ?
The function is used with 32bit register value from the device so I
think it is ok.
Regards,
Arend
---
Cc: Brett Rudley <brud...@broadcom.com>
Cc: Arend van Spriel <ar...@broadcom.com>
Cc: "Franky (Zhenhui) Lin" <fran...@broadcom.com>
Cc: Hante Meuleman <meule...@broadcom.com>
Cc: Kalle Valo <kv...@codeaurora.org>
Cc: Pieter-Paul Giesberts <piete...@broadcom.com>
Cc: Daniel Kim <de...@broadcom.com>
Cc: linux-wirel...@vger.kernel.org
Cc: brcm80211-dev-l...@broadcom.com
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: netdev@vger.kernel.org
Cc: linux-a...@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
---
drivers/net/wireless/brcm80211/brcmfmac/sdio.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
index d36f5f3d931b..f990e3d0e696 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
@@ -2564,15 +2564,6 @@ static inline void brcmf_sdio_clrintr(struct brcmf_sdio
*bus)
}
}
-static void atomic_orr(int val, atomic_t *v)
-{
- int old_val;
-
- old_val = atomic_read(v);
- while (atomic_cmpxchg(v, old_val, val | old_val) != old_val)
- old_val = atomic_read(v);
-}
-
static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus)
{
struct brcmf_core *buscore;
@@ -2595,7 +2586,7 @@ static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus)
if (val) {
brcmf_sdiod_regwl(bus->sdiodev, addr, val, &ret);
bus->sdcnt.f1regdata++;
- atomic_orr(val, &bus->intstatus);
+ atomic_or(val, &bus->intstatus);
}
return ret;
@@ -2712,7 +2703,7 @@ static void brcmf_sdio_dpc(struct brcmf_sdio *bus)
/* Keep still-pending events for next scheduling */
if (intstatus)
- atomic_orr(intstatus, &bus->intstatus);
+ atomic_or(intstatus, &bus->intstatus);
brcmf_sdio_clrintr(bus);
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
