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From: Adrian Hunter <adrian.hunter@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	"Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
	"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Andy Lutomirski <luto@kernel.org>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	John Stultz <jstultz@google.com>, Stephen Boyd <sboyd@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Randy Dunlap <rdunlap@infradead.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	linux-s390@vger.kernel.org
Subject: [PATCH] vdso: Fix powerpc build U64_MAX undeclared error
Date: Tue,  9 Apr 2024 09:26:39 +0300	[thread overview]
Message-ID: <20240409062639.3393-1-adrian.hunter@intel.com> (raw)

U64_MAX is not in include/vdso/limits.h, although that isn't noticed on x86
because x86 includes include/linux/limits.h indirectly. However powerpc
is more selective, resulting in the following build error:

  In file included from <command-line>:
  lib/vdso/gettimeofday.c: In function 'vdso_calc_ns':
  lib/vdso/gettimeofday.c:11:33: error: 'U64_MAX' undeclared
     11 | # define VDSO_DELTA_MASK(vd)    U64_MAX
        |                                 ^~~~~~~

Use ULLONG_MAX instead which will work just as well and is in
include/vdso/limits.h.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20240409124905.6816db37@canb.auug.org.au/
Fixes: c8e3a8b6f2e6 ("vdso: Consolidate vdso_calc_delta()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 lib/vdso/gettimeofday.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 9c3a8d2440c9..899850bd6f0b 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -8,7 +8,7 @@
 #ifndef vdso_calc_ns
 
 #ifdef VDSO_DELTA_NOMASK
-# define VDSO_DELTA_MASK(vd)	U64_MAX
+# define VDSO_DELTA_MASK(vd)	ULLONG_MAX
 #else
 # define VDSO_DELTA_MASK(vd)	(vd->mask)
 #endif
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Adrian Hunter <adrian.hunter@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	John Stultz <jstultz@google.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	linux-s390@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	x86@kernel.org, "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
	Ingo Molnar <mingo@redhat.com>,
	"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Nicholas Piggin <npiggin@gmail.com>,
	Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	Stephen Boyd <sboyd@kernel.org>,
	Randy Dunlap <rdunlap@infradead.org>,
	linux-kernel@vger.kernel.org, Sven Schnelle <svens@linux.ibm.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] vdso: Fix powerpc build U64_MAX undeclared error
Date: Tue,  9 Apr 2024 09:26:39 +0300	[thread overview]
Message-ID: <20240409062639.3393-1-adrian.hunter@intel.com> (raw)

U64_MAX is not in include/vdso/limits.h, although that isn't noticed on x86
because x86 includes include/linux/limits.h indirectly. However powerpc
is more selective, resulting in the following build error:

  In file included from <command-line>:
  lib/vdso/gettimeofday.c: In function 'vdso_calc_ns':
  lib/vdso/gettimeofday.c:11:33: error: 'U64_MAX' undeclared
     11 | # define VDSO_DELTA_MASK(vd)    U64_MAX
        |                                 ^~~~~~~

Use ULLONG_MAX instead which will work just as well and is in
include/vdso/limits.h.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20240409124905.6816db37@canb.auug.org.au/
Fixes: c8e3a8b6f2e6 ("vdso: Consolidate vdso_calc_delta()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 lib/vdso/gettimeofday.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 9c3a8d2440c9..899850bd6f0b 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -8,7 +8,7 @@
 #ifndef vdso_calc_ns
 
 #ifdef VDSO_DELTA_NOMASK
-# define VDSO_DELTA_MASK(vd)	U64_MAX
+# define VDSO_DELTA_MASK(vd)	ULLONG_MAX
 #else
 # define VDSO_DELTA_MASK(vd)	(vd->mask)
 #endif
-- 
2.34.1


             reply	other threads:[~2024-04-09  6:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-09  6:26 Adrian Hunter [this message]
2024-04-09  6:26 ` [PATCH] vdso: Fix powerpc build U64_MAX undeclared error Adrian Hunter
2024-04-09 10:39 ` [tip: timers/core] " tip-bot2 for Adrian Hunter
2024-04-09 17:07 ` [PATCH] " John Stultz
2024-04-09 17:07   ` John Stultz
2024-04-10  2:47 ` Stephen Rothwell
2024-04-10  2:47   ` Stephen Rothwell

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