* [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32()
@ 2016-02-04 20:40 Denys Vlasenko
2016-02-10 17:28 ` Martin K. Petersen
2016-02-11 14:41 ` Martin K. Petersen
0 siblings, 2 replies; 4+ messages in thread
From: Denys Vlasenko @ 2016-02-04 20:40 UTC (permalink / raw)
To: James Bottomley
Cc: Denys Vlasenko, Fabian Frederick, Anil Gurumurthy,
Christoph Hellwig, Guenter Roeck, Ben Hutchings, linux-kernel,
linux-scsi
__bfa_trc() compiles to 115 bytes of machine code.
With this .config: http://busybox.net/~vda/kernel_config
there are 1494 calls of __bfa_trc().
__bfa_trc32() is very similar, so it is uninlined too.
However, it appears to be unused, therefore this patch
ifdefs it out.
Change in code size is about 130,000 bytes:
text data bss dec hex filename
85975426 22294712 20627456 128897594 7aed23a vmlinux.before
85842882 22294584 20627456 128764922 7accbfa vmlinux
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
CC: Fabian Frederick <fabf@skynet.be>
CC: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Guenter Roeck <linux@roeck-us.net>
CC: Ben Hutchings <ben@decadent.org.uk>
CC: James Bottomley <JBottomley@Parallels.com>
CC: linux-kernel@vger.kernel.org
CC: linux-scsi@vger.kernel.org
---
drivers/scsi/bfa/bfa_core.c | 40 ++++++++++++++++++++++++++++++++++++++++
drivers/scsi/bfa/bfa_cs.h | 41 ++++-------------------------------------
2 files changed, 44 insertions(+), 37 deletions(-)
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index e3f67b0..3657a00 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -90,6 +90,46 @@ static bfa_ioc_mbox_mcfunc_t bfa_mbox_isrs[BFI_MC_MAX] = {
+void
+__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
+{
+ int tail = trcm->tail;
+ struct bfa_trc_s *trc = &trcm->trc[tail];
+
+ if (trcm->stopped)
+ return;
+
+ trc->fileno = (u16) fileno;
+ trc->line = (u16) line;
+ trc->data.u64 = data;
+ trc->timestamp = BFA_TRC_TS(trcm);
+
+ trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
+ if (trcm->tail == trcm->head)
+ trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
+}
+
+#if 0 /* UNUSED */
+void
+__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
+{
+ int tail = trcm->tail;
+ struct bfa_trc_s *trc = &trcm->trc[tail];
+
+ if (trcm->stopped)
+ return;
+
+ trc->fileno = (u16) fileno;
+ trc->line = (u16) line;
+ trc->data.u32.u32 = data;
+ trc->timestamp = BFA_TRC_TS(trcm);
+
+ trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
+ if (trcm->tail == trcm->head)
+ trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
+}
+#endif
+
static void
bfa_com_port_attach(struct bfa_s *bfa)
{
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index 91a8aa3..dd3154e 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -107,44 +107,11 @@ bfa_trc_stop(struct bfa_trc_mod_s *trcm)
trcm->stopped = 1;
}
-static inline void
-__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
-{
- int tail = trcm->tail;
- struct bfa_trc_s *trc = &trcm->trc[tail];
-
- if (trcm->stopped)
- return;
-
- trc->fileno = (u16) fileno;
- trc->line = (u16) line;
- trc->data.u64 = data;
- trc->timestamp = BFA_TRC_TS(trcm);
-
- trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
- if (trcm->tail == trcm->head)
- trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
-}
-
+void
+__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data);
-static inline void
-__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
-{
- int tail = trcm->tail;
- struct bfa_trc_s *trc = &trcm->trc[tail];
-
- if (trcm->stopped)
- return;
-
- trc->fileno = (u16) fileno;
- trc->line = (u16) line;
- trc->data.u32.u32 = data;
- trc->timestamp = BFA_TRC_TS(trcm);
-
- trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
- if (trcm->tail == trcm->head)
- trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
-}
+void
+__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data);
#define bfa_sm_fault(__mod, __event) do { \
bfa_trc(__mod, (((u32)0xDEAD << 16) | __event)); \
--
1.8.1.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32()
2016-02-04 20:40 [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32() Denys Vlasenko
@ 2016-02-10 17:28 ` Martin K. Petersen
2016-02-11 8:42 ` Anil Gurumurthy
2016-02-11 14:41 ` Martin K. Petersen
1 sibling, 1 reply; 4+ messages in thread
From: Martin K. Petersen @ 2016-02-10 17:28 UTC (permalink / raw)
To: Denys Vlasenko
Cc: James Bottomley, Fabian Frederick, Anil Gurumurthy,
Christoph Hellwig, Guenter Roeck, Ben Hutchings, linux-kernel,
linux-scsi
>>>>> "Denys" == Denys Vlasenko <dvlasenk@redhat.com> writes:
Denys> __bfa_trc32() is very similar, so it is uninlined too. However,
Denys> it appears to be unused, therefore this patch ifdefs it out.
Why don't we just drop it?
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32()
2016-02-10 17:28 ` Martin K. Petersen
@ 2016-02-11 8:42 ` Anil Gurumurthy
0 siblings, 0 replies; 4+ messages in thread
From: Anil Gurumurthy @ 2016-02-11 8:42 UTC (permalink / raw)
To: Martin K. Petersen, Denys Vlasenko
Cc: James Bottomley, Fabian Frederick, Christoph Hellwig,
Guenter Roeck, Ben Hutchings, linux-kernel, linux-scsi
You could remove the __bfa_trc32() routine
Thanks,
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
-----Original Message-----
From: Martin K. Petersen [mailto:martin.petersen@oracle.com]
Sent: 10 February 2016 22:59
To: Denys Vlasenko <dvlasenk@redhat.com>
Cc: James Bottomley <JBottomley@Parallels.com>; Fabian Frederick <fabf@skynet.be>; Anil Gurumurthy <Anil.Gurumurthy@qlogic.com>; Christoph Hellwig <hch@lst.de>; Guenter Roeck <linux@roeck-us.net>; Ben Hutchings <ben@decadent.org.uk>; linux-kernel <linux-kernel@vger.kernel.org>; linux-scsi <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32()
>>>>> "Denys" == Denys Vlasenko <dvlasenk@redhat.com> writes:
Denys> __bfa_trc32() is very similar, so it is uninlined too. However,
Denys> it appears to be unused, therefore this patch ifdefs it out.
Why don't we just drop it?
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32()
2016-02-04 20:40 [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32() Denys Vlasenko
2016-02-10 17:28 ` Martin K. Petersen
@ 2016-02-11 14:41 ` Martin K. Petersen
1 sibling, 0 replies; 4+ messages in thread
From: Martin K. Petersen @ 2016-02-11 14:41 UTC (permalink / raw)
To: Denys Vlasenko
Cc: Fabian Frederick, Anil Gurumurthy, Christoph Hellwig,
Guenter Roeck, Ben Hutchings, linux-kernel, linux-scsi
>>>>> "Denys" == Denys Vlasenko <dvlasenk@redhat.com> writes:
Denys> __bfa_trc() compiles to 115 bytes of machine code. With this
Denys> .config: http://busybox.net/~vda/kernel_config there are 1494
Denys> calls of __bfa_trc().
Applied to 4.6/scsi-queue.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 4+ messages in thread
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2016-02-04 20:40 [PATCH RESEND] bfa: deinline __bfa_trc() and __bfa_trc32() Denys Vlasenko
2016-02-10 17:28 ` Martin K. Petersen
2016-02-11 8:42 ` Anil Gurumurthy
2016-02-11 14:41 ` Martin K. Petersen
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