* [PATCH v1 0/2] clang warning cleanups
@ 2022-12-23 14:24 Ammar Faizi
2022-12-23 14:24 ` [PATCH v1 1/2] ACPI: Silence missing prototype warnings Ammar Faizi
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Ammar Faizi @ 2022-12-23 14:24 UTC (permalink / raw)
To: Robert Moore, Rafael J. Wysocki
Cc: Ammar Faizi, Len Brown, Nick Desaulniers, Tom Rix,
Nathan Chancellor, Linux ACPI Mailing List,
Linux Kernel Mailing List, ACPICA Mailing List,
LLVM Mailing List, GNU/Weeb Mailing List
From: Ammar Faizi <[email protected]>
Hi,
On top of Linus' tree. This series fixes clang warnings.
Base commit: 8395ae05cb5a2e31d36106e8c85efa11cda849be ("Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi")
# Patch 1:
Compiling with clang-16:
drivers/acpi/acpi_lpit.c:142:6: error: no previous prototype \
for function 'acpi_init_lpit' [-Werror,-Wmissing-prototypes]
drivers/acpi/ioapic.c:212:6: error: no previous prototype \
for function 'pci_ioapic_remove' [-Werror,-Wmissing-prototypes]
drivers/acpi/ioapic.c:229:5: error: no previous prototype \
for function 'acpi_ioapic_remove' [-Werror,-Wmissing-prototypes]
Include "internal.h" to silence them.
# Patch 2:
@num_carats is used for debugging, passed to the 'ACPI_DEBUG_PRINT()'
macro. But this macro will expand to nothing when debug is disabled,
resulting in the following (clang-16):
drivers/acpi/acpica/nsaccess.c:295:6: error: variable 'num_carats' set \
but not used [-Werror,-Wunused-but-set-variable]
u32 num_carats;
^
1 error generated.
Move the variable declaration inside the else block to reduce the scope,
then add '(void)num_carats' to silence the warning when debug is disabled.
Signed-off-by: Ammar Faizi <[email protected]>
---
Ammar Faizi (2):
ACPI: Silence missing prototype warnings
ACPICA: Silence 'unused-but-set variable' warning
drivers/acpi/acpi_lpit.c | 1 +
drivers/acpi/acpica/nsaccess.c | 4 ++--
drivers/acpi/ioapic.c | 1 +
3 files changed, 4 insertions(+), 2 deletions(-)
base-commit: 8395ae05cb5a2e31d36106e8c85efa11cda849be
--
Ammar Faizi
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v1 1/2] ACPI: Silence missing prototype warnings
2022-12-23 14:24 [PATCH v1 0/2] clang warning cleanups Ammar Faizi
@ 2022-12-23 14:24 ` Ammar Faizi
2022-12-30 18:13 ` Rafael J. Wysocki
2022-12-23 14:24 ` [PATCH v1 2/2] ACPICA: Silence 'unused-but-set variable' warning Ammar Faizi
2022-12-23 15:33 ` [PATCH v1 0/2] clang warning cleanups Ammar Faizi
2 siblings, 1 reply; 6+ messages in thread
From: Ammar Faizi @ 2022-12-23 14:24 UTC (permalink / raw)
To: Robert Moore, Rafael J. Wysocki
Cc: Ammar Faizi, Len Brown, Nick Desaulniers, Tom Rix,
Nathan Chancellor, Linux ACPI Mailing List,
Linux Kernel Mailing List, ACPICA Mailing List,
LLVM Mailing List, GNU/Weeb Mailing List
From: Ammar Faizi <[email protected]>
Compiling with clang-16:
drivers/acpi/acpi_lpit.c:142:6: error: no previous prototype \
for function 'acpi_init_lpit' [-Werror,-Wmissing-prototypes]
drivers/acpi/ioapic.c:212:6: error: no previous prototype \
for function 'pci_ioapic_remove' [-Werror,-Wmissing-prototypes]
drivers/acpi/ioapic.c:229:5: error: no previous prototype \
for function 'acpi_ioapic_remove' [-Werror,-Wmissing-prototypes]
Include "internal.h" to silence them.
Cc: LLVM Mailing List <[email protected]>
Signed-off-by: Ammar Faizi <[email protected]>
---
drivers/acpi/acpi_lpit.c | 1 +
drivers/acpi/ioapic.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c
index 50540d4d4948..3843d2576d3f 100644
--- a/drivers/acpi/acpi_lpit.c
+++ b/drivers/acpi/acpi_lpit.c
@@ -10,6 +10,7 @@
#include <linux/acpi.h>
#include <asm/msr.h>
#include <asm/tsc.h>
+#include "internal.h"
struct lpit_residency_info {
struct acpi_generic_address gaddr;
diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
index a690c7b18623..6677955b4a8e 100644
--- a/drivers/acpi/ioapic.c
+++ b/drivers/acpi/ioapic.c
@@ -24,6 +24,7 @@
#include <linux/acpi.h>
#include <linux/pci.h>
#include <acpi/acpi.h>
+#include "internal.h"
struct acpi_pci_ioapic {
acpi_handle root_handle;
--
Ammar Faizi
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v1 2/2] ACPICA: Silence 'unused-but-set variable' warning
2022-12-23 14:24 [PATCH v1 0/2] clang warning cleanups Ammar Faizi
2022-12-23 14:24 ` [PATCH v1 1/2] ACPI: Silence missing prototype warnings Ammar Faizi
@ 2022-12-23 14:24 ` Ammar Faizi
2022-12-30 18:17 ` Rafael J. Wysocki
2022-12-23 15:33 ` [PATCH v1 0/2] clang warning cleanups Ammar Faizi
2 siblings, 1 reply; 6+ messages in thread
From: Ammar Faizi @ 2022-12-23 14:24 UTC (permalink / raw)
To: Robert Moore, Rafael J. Wysocki
Cc: Ammar Faizi, Len Brown, Nick Desaulniers, Tom Rix,
Nathan Chancellor, Linux ACPI Mailing List,
Linux Kernel Mailing List, ACPICA Mailing List,
LLVM Mailing List, GNU/Weeb Mailing List
From: Ammar Faizi <[email protected]>
@num_carats is used for debugging, passed to the 'ACPI_DEBUG_PRINT()'
macro. But this macro will expand to nothing when debug is disabled,
resulting in the following (clang-16):
drivers/acpi/acpica/nsaccess.c:295:6: error: variable 'num_carats' set \
but not used [-Werror,-Wunused-but-set-variable]
u32 num_carats;
^
1 error generated.
Move the variable declaration inside the else block to reduce the scope,
then add '(void)num_carats' to silence the warning when debug is disabled.
Cc: LLVM Mailing List <[email protected]>
Signed-off-by: Ammar Faizi <[email protected]>
---
drivers/acpi/acpica/nsaccess.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index a0c1a665dfc1..d73d052c5b3b 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -292,7 +292,6 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
struct acpi_namespace_node *current_node = NULL;
struct acpi_namespace_node *this_node = NULL;
u32 num_segments;
- u32 num_carats;
acpi_name simple_name;
acpi_object_type type_to_check_for;
acpi_object_type this_search_type;
@@ -394,6 +393,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
"Path is absolute from root [%p]\n",
this_node));
} else {
+ u32 num_carats = 0;
/* Pathname is relative to current scope, start there */
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
@@ -406,7 +406,6 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
* the parent node for each prefix instance.
*/
this_node = prefix_node;
- num_carats = 0;
while (*path == (u8) AML_PARENT_PREFIX) {
/* Name is fully qualified, no search rules apply */
@@ -449,6 +448,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
"Search scope is [%4.4s], path has %u carat(s)\n",
acpi_ut_get_node_name
(this_node), num_carats));
+ (void)num_carats;
}
}
--
Ammar Faizi
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v1 0/2] clang warning cleanups
2022-12-23 14:24 [PATCH v1 0/2] clang warning cleanups Ammar Faizi
2022-12-23 14:24 ` [PATCH v1 1/2] ACPI: Silence missing prototype warnings Ammar Faizi
2022-12-23 14:24 ` [PATCH v1 2/2] ACPICA: Silence 'unused-but-set variable' warning Ammar Faizi
@ 2022-12-23 15:33 ` Ammar Faizi
2 siblings, 0 replies; 6+ messages in thread
From: Ammar Faizi @ 2022-12-23 15:33 UTC (permalink / raw)
To: Robert Moore, Rafael J. Wysocki
Cc: Len Brown, Nick Desaulniers, Tom Rix, Nathan Chancellor,
Linux ACPI Mailing List, Linux Kernel Mailing List,
ACPICA Mailing List, LLVM Mailing List, GNU/Weeb Mailing List
On 12/23/22 9:24 PM, Ammar Faizi wrote:
> Hi,
>
> On top of Linus' tree. This series fixes clang warnings.
Sorry for the noise. It turned out I messed up my clang compiler flags.
I forgot to do a "git reset --hard" before recompiling.
This has nothing todo with the upstream kernel. Please ignore.
--
Ammar Faizi
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v1 1/2] ACPI: Silence missing prototype warnings
2022-12-23 14:24 ` [PATCH v1 1/2] ACPI: Silence missing prototype warnings Ammar Faizi
@ 2022-12-30 18:13 ` Rafael J. Wysocki
0 siblings, 0 replies; 6+ messages in thread
From: Rafael J. Wysocki @ 2022-12-30 18:13 UTC (permalink / raw)
To: Ammar Faizi
Cc: Robert Moore, Rafael J. Wysocki, Len Brown, Nick Desaulniers,
Tom Rix, Nathan Chancellor, Linux ACPI Mailing List,
Linux Kernel Mailing List, ACPICA Mailing List,
LLVM Mailing List, GNU/Weeb Mailing List
On Fri, Dec 23, 2022 at 3:25 PM Ammar Faizi <[email protected]> wrote:
>
> From: Ammar Faizi <[email protected]>
>
> Compiling with clang-16:
>
> drivers/acpi/acpi_lpit.c:142:6: error: no previous prototype \
> for function 'acpi_init_lpit' [-Werror,-Wmissing-prototypes]
>
> drivers/acpi/ioapic.c:212:6: error: no previous prototype \
> for function 'pci_ioapic_remove' [-Werror,-Wmissing-prototypes]
>
> drivers/acpi/ioapic.c:229:5: error: no previous prototype \
> for function 'acpi_ioapic_remove' [-Werror,-Wmissing-prototypes]
>
> Include "internal.h" to silence them.
>
> Cc: LLVM Mailing List <[email protected]>
> Signed-off-by: Ammar Faizi <[email protected]>
> ---
> drivers/acpi/acpi_lpit.c | 1 +
> drivers/acpi/ioapic.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c
> index 50540d4d4948..3843d2576d3f 100644
> --- a/drivers/acpi/acpi_lpit.c
> +++ b/drivers/acpi/acpi_lpit.c
> @@ -10,6 +10,7 @@
> #include <linux/acpi.h>
> #include <asm/msr.h>
> #include <asm/tsc.h>
> +#include "internal.h"
>
> struct lpit_residency_info {
> struct acpi_generic_address gaddr;
> diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
> index a690c7b18623..6677955b4a8e 100644
> --- a/drivers/acpi/ioapic.c
> +++ b/drivers/acpi/ioapic.c
> @@ -24,6 +24,7 @@
> #include <linux/acpi.h>
> #include <linux/pci.h>
> #include <acpi/acpi.h>
> +#include "internal.h"
>
> struct acpi_pci_ioapic {
> acpi_handle root_handle;
> --
Applied as 6.3 material, thanks!
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v1 2/2] ACPICA: Silence 'unused-but-set variable' warning
2022-12-23 14:24 ` [PATCH v1 2/2] ACPICA: Silence 'unused-but-set variable' warning Ammar Faizi
@ 2022-12-30 18:17 ` Rafael J. Wysocki
0 siblings, 0 replies; 6+ messages in thread
From: Rafael J. Wysocki @ 2022-12-30 18:17 UTC (permalink / raw)
To: Ammar Faizi
Cc: Robert Moore, Rafael J. Wysocki, Len Brown, Nick Desaulniers,
Tom Rix, Nathan Chancellor, Linux ACPI Mailing List,
Linux Kernel Mailing List, ACPICA Mailing List,
LLVM Mailing List, GNU/Weeb Mailing List
On Fri, Dec 23, 2022 at 3:24 PM Ammar Faizi <[email protected]> wrote:
>
> From: Ammar Faizi <[email protected]>
>
> @num_carats is used for debugging, passed to the 'ACPI_DEBUG_PRINT()'
> macro. But this macro will expand to nothing when debug is disabled,
> resulting in the following (clang-16):
>
> drivers/acpi/acpica/nsaccess.c:295:6: error: variable 'num_carats' set \
> but not used [-Werror,-Wunused-but-set-variable]
> u32 num_carats;
> ^
> 1 error generated.
>
> Move the variable declaration inside the else block to reduce the scope,
> then add '(void)num_carats' to silence the warning when debug is disabled.
>
> Cc: LLVM Mailing List <[email protected]>
> Signed-off-by: Ammar Faizi <[email protected]>
ACPICA changes require (at least) a pull request to be submitted to
the upstream ACPICA project on GitHub.
If such a pull request is created, please resend the Linux patch with
a Link tag pointing to that pull request.
Thanks!
> ---
> drivers/acpi/acpica/nsaccess.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
> index a0c1a665dfc1..d73d052c5b3b 100644
> --- a/drivers/acpi/acpica/nsaccess.c
> +++ b/drivers/acpi/acpica/nsaccess.c
> @@ -292,7 +292,6 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
> struct acpi_namespace_node *current_node = NULL;
> struct acpi_namespace_node *this_node = NULL;
> u32 num_segments;
> - u32 num_carats;
> acpi_name simple_name;
> acpi_object_type type_to_check_for;
> acpi_object_type this_search_type;
> @@ -394,6 +393,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
> "Path is absolute from root [%p]\n",
> this_node));
> } else {
> + u32 num_carats = 0;
> /* Pathname is relative to current scope, start there */
>
> ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
> @@ -406,7 +406,6 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
> * the parent node for each prefix instance.
> */
> this_node = prefix_node;
> - num_carats = 0;
> while (*path == (u8) AML_PARENT_PREFIX) {
>
> /* Name is fully qualified, no search rules apply */
> @@ -449,6 +448,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
> "Search scope is [%4.4s], path has %u carat(s)\n",
> acpi_ut_get_node_name
> (this_node), num_carats));
> + (void)num_carats;
> }
> }
>
> --
> Ammar Faizi
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-12-30 18:18 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2022-12-23 14:24 [PATCH v1 0/2] clang warning cleanups Ammar Faizi
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2022-12-30 18:13 ` Rafael J. Wysocki
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