From: Arnd Bergmann <arnd@arndb.de>
To: Tejun Heo <tj@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] [RESEND] ata: avoid gcc-7 warning in ata_timing_quantize
Date: Wed, 6 Sep 2017 23:45:34 +0200 [thread overview]
Message-ID: <20170906214552.2111904-1-arnd@arndb.de> (raw)
gcc-7 warns about the result of a constant multiplication used as
a boolean:
drivers/ata/libata-core.c: In function 'ata_timing_quantize':
drivers/ata/libata-core.c:3164:30: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context]
This slightly rearranges the macro to simplify the code and avoid
the warning at the same time.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
Hi Tejun,
I just noticed this patch among others I had previously sent
but that were not applied. It seems I forgot to reply to your
Ack after it had become clear that the serious would not
get merged in one chunk. Please apply this for 4.14.
Link: https://patchwork.kernel.org/patch/9840269/
---
drivers/ata/libata-core.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 1945a8ea2099..ee4c1ec9dca0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3234,19 +3234,19 @@ static const struct ata_timing ata_timing[] = {
};
#define ENOUGH(v, unit) (((v)-1)/(unit)+1)
-#define EZ(v, unit) ((v)?ENOUGH(v, unit):0)
+#define EZ(v, unit) ((v)?ENOUGH(((v) * 1000), unit):0)
static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
{
- q->setup = EZ(t->setup * 1000, T);
- q->act8b = EZ(t->act8b * 1000, T);
- q->rec8b = EZ(t->rec8b * 1000, T);
- q->cyc8b = EZ(t->cyc8b * 1000, T);
- q->active = EZ(t->active * 1000, T);
- q->recover = EZ(t->recover * 1000, T);
- q->dmack_hold = EZ(t->dmack_hold * 1000, T);
- q->cycle = EZ(t->cycle * 1000, T);
- q->udma = EZ(t->udma * 1000, UT);
+ q->setup = EZ(t->setup, T);
+ q->act8b = EZ(t->act8b, T);
+ q->rec8b = EZ(t->rec8b, T);
+ q->cyc8b = EZ(t->cyc8b, T);
+ q->active = EZ(t->active, T);
+ q->recover = EZ(t->recover, T);
+ q->dmack_hold = EZ(t->dmack_hold, T);
+ q->cycle = EZ(t->cycle, T);
+ q->udma = EZ(t->udma, UT);
}
void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
--
2.9.0
next reply other threads:[~2017-09-06 21:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-06 21:45 Arnd Bergmann [this message]
2017-09-07 20:34 ` [PATCH] [RESEND] ata: avoid gcc-7 warning in ata_timing_quantize Tejun Heo
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