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Message-ID: <94F2FBAB4432B54E8AACC7DFDE6C92E37E5493D9@ORSMSX110.amr.corp.intel.com>
Date: Wed, 21 Dec 2016 17:16:10 +0000
From: "Moore, Robert" <robert.moore@...el.com>
To: "Zheng, Lv" <lv.zheng@...el.com>, Kees Cook <keescook@...omium.org>
CC: "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
Emese Revfy <re.emese@...il.com>,
"devel@...ica.org" <devel@...ica.org>
Subject: RE: [PATCH] acpi: Fix format string type mistakes
These formatting changes will not compile under:
Gcc 4.4.5
Gcc 5.4.0
The printf formatting stuff is very delicate, as ACPICA has to be compiled under many different compilers.
Bob
> -----Original Message-----
> From: Zheng, Lv
> Sent: Wednesday, December 21, 2016 12:07 AM
> To: Kees Cook <keescook@...omium.org>; Moore, Robert
> <robert.moore@...el.com>
> Cc: Wysocki, Rafael J <rafael.j.wysocki@...el.com>; linux-
> kernel@...r.kernel.org; linux-acpi@...r.kernel.org; Emese Revfy
> <re.emese@...il.com>; devel@...ica.org
> Subject: RE: [PATCH] acpi: Fix format string type mistakes
>
> Hi, Kees and Emese
>
> The pull request is under rebasing.
> So if you cannot reach the URL, find the commit here:
> https://github.com/acpica/acpica/pull/196
>
> Thanks and best regards
> Lv
>
> > From: Zheng, Lv
> > Subject: RE: [PATCH] acpi: Fix format string type mistakes
> >
> > Hi, Kees and Emese
> >
> > I just helped to back port the commit here:
> > https://github.com/acpica/acpica/pull/196/commits/5e64857f
> > If you can see something wrong in it, please let me know.
> >
> > Thanks and best regards
> > Lv
> >
> > > From: Devel [mailto:devel-bounces@...ica.org] On Behalf Of Zheng, Lv
> > > Subject: Re: [Devel] [PATCH] acpi: Fix format string type mistakes
> > >
> > > Hi,
> > >
> > > > From: Kees Cook [mailto:keescook@...omium.org]
> > > > Subject: [PATCH] acpi: Fix format string type mistakes
> > > >
> > > > From: Emese Revfy <re.emese@...il.com>
> > > >
> > > > This adds the missing __printf attribute which allows compile time
> > > > format string checking (and will be used by the coming initify gcc
> > > > plugin). Additionally, this fixes the warnings exposed by the
> attribute.
> > > >
> > > > Signed-off-by: Emese Revfy <re.emese@...il.com>
> > > > [kees: split scsi/acpi, merged attr and fix, new commit messages]
> > > > Signed-off-by: Kees Cook <keescook@...omium.org>
> > > > ---
> > > > drivers/acpi/acpica/dbhistry.c | 2 +-
> > > > drivers/acpi/acpica/dbinput.c | 10 ++---
> > > > drivers/acpi/acpica/dbstats.c | 88
> > > > +++++++++++++++++++++---------------------
> > > > drivers/acpi/acpica/utdebug.c | 2 +-
> > > > include/acpi/acpiosxf.h | 3 +-
> > > > 5 files changed, 53 insertions(+), 52 deletions(-)
> > > >
> > > > diff --git a/drivers/acpi/acpica/dbhistry.c
> > > > b/drivers/acpi/acpica/dbhistry.c index 46bd65d38df9..ec9da4830f6a
> > > > 100644
> > > > --- a/drivers/acpi/acpica/dbhistry.c
> > > > +++ b/drivers/acpi/acpica/dbhistry.c
> > > > @@ -155,7 +155,7 @@ void acpi_db_display_history(void)
> > > >
> > > > for (i = 0; i < acpi_gbl_num_history; i++) {
> > > > if (acpi_gbl_history_buffer[history_index].command) {
> > > > - acpi_os_printf("%3ld %s\n",
> > > > + acpi_os_printf("%3u %s\n",
> > > >
> acpi_gbl_history_buffer[history_index].
> > > > cmd_num,
> > > >
> acpi_gbl_history_buffer[history_index].
> > > > diff --git a/drivers/acpi/acpica/dbinput.c
> > > > b/drivers/acpi/acpica/dbinput.c index 068214f9cc9d..43be06bdb790
> > > > 100644
> > > > --- a/drivers/acpi/acpica/dbinput.c
> > > > +++ b/drivers/acpi/acpica/dbinput.c
> > > > @@ -608,7 +608,7 @@ static u32 acpi_db_get_line(char
> *input_buffer)
> > > > (acpi_gbl_db_parsed_buf, sizeof(acpi_gbl_db_parsed_buf),
> > > > input_buffer)) {
> > > > acpi_os_printf
> > > > - ("Buffer overflow while parsing input line (max %u
> characters)\n",
> > > > + ("Buffer overflow while parsing input line (max %lu
> > > > +characters)\n",
> > > > sizeof(acpi_gbl_db_parsed_buf));
> > > > return (0);
> > > > }
> > > > @@ -864,24 +864,24 @@ acpi_db_command_dispatch(char *input_buffer,
> > > >
> > > > if (param_count == 0) {
> > > > acpi_os_printf
> > > > - ("Current debug level for file output is:
> %8.8lX\n",
> > > > + ("Current debug level for file output is:
> %8.8X\n",
> > > > acpi_gbl_db_debug_level);
> > > > acpi_os_printf
> > > > - ("Current debug level for console output is:
> %8.8lX\n",
> > > > + ("Current debug level for console output is:
> %8.8X\n",
> > > > acpi_gbl_db_console_debug_level);
> > > > } else if (param_count == 2) {
> > > > temp = acpi_gbl_db_console_debug_level;
> > > > acpi_gbl_db_console_debug_level =
> > > > strtoul(acpi_gbl_db_args[1], NULL, 16);
> > > > acpi_os_printf
> > > > - ("Debug Level for console output was %8.8lX,
> now %8.8lX\n",
> > > > + ("Debug Level for console output was %8.8X, now
> %8.8X\n",
> > > > temp, acpi_gbl_db_console_debug_level);
> > > > } else {
> > > > temp = acpi_gbl_db_debug_level;
> > > > acpi_gbl_db_debug_level =
> > > > strtoul(acpi_gbl_db_args[1], NULL, 16);
> > > > acpi_os_printf
> > > > - ("Debug Level for file output was %8.8lX, now
> %8.8lX\n",
> > > > + ("Debug Level for file output was %8.8X, now
> %8.8X\n",
> > > > temp, acpi_gbl_db_debug_level);
> > > > }
> > > > break;
> > > > diff --git a/drivers/acpi/acpica/dbstats.c
> > > > b/drivers/acpi/acpica/dbstats.c index a414e1fa6f9d..de7023024b12
> > > > 100644
> > > > --- a/drivers/acpi/acpica/dbstats.c
> > > > +++ b/drivers/acpi/acpica/dbstats.c
> > > > @@ -377,17 +377,17 @@ acpi_status acpi_db_display_statistics(char
> *type_arg)
> > > > "ACPI_TYPE", "NODES", "OBJECTS");
> > > >
> > > > for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++) {
> > > > - acpi_os_printf("%16.16s % 10ld% 10ld\n",
> > > > + acpi_os_printf("%16.16s % 10d% 10d\n",
> > > > acpi_ut_get_type_name(i),
> > > > acpi_gbl_node_type_count[i],
> > > > acpi_gbl_obj_type_count[i]);
> > > > }
> > > >
> > > > - acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
> > > > + acpi_os_printf("%16.16s % 10d% 10d\n", "Misc/Unknown",
> > > > acpi_gbl_node_type_count_misc,
> > > > acpi_gbl_obj_type_count_misc);
> > > >
> > > > - acpi_os_printf("%16.16s % 10ld% 10ld\n", "TOTALS:",
> > > > + acpi_os_printf("%16.16s % 10d% 10d\n", "TOTALS:",
> > > > acpi_gbl_num_nodes, acpi_gbl_num_objects);
> > > > break;
> > > >
> > > > @@ -415,16 +415,16 @@ acpi_status acpi_db_display_statistics(char
> *type_arg)
> > > > case CMD_STAT_MISC:
> > > >
> > > > acpi_os_printf("\nMiscellaneous Statistics:\n\n");
> > > > - acpi_os_printf("Calls to AcpiPsFind:.. ........% 7ld\n",
> > > > + acpi_os_printf("Calls to AcpiPsFind:.. ........% 7u\n",
> > > > acpi_gbl_ps_find_count);
> > > > - acpi_os_printf("Calls to AcpiNsLookup:..........%
> 7ld\n",
> > > > + acpi_os_printf("Calls to AcpiNsLookup:..........% 7u\n",
> > > > acpi_gbl_ns_lookup_count);
> > > >
> > > > acpi_os_printf("\n");
> > > >
> > > > acpi_os_printf("Mutex usage:\n\n");
> > > > for (i = 0; i < ACPI_NUM_MUTEX; i++) {
> > > > - acpi_os_printf("%-28s: % 7ld\n",
> > > > + acpi_os_printf("%-28s: % 7u\n",
> > > > acpi_ut_get_mutex_name(i),
> > > > acpi_gbl_mutex_info[i].use_count);
> > > > }
> > > > @@ -434,87 +434,87 @@ acpi_status acpi_db_display_statistics(char
> > > > *type_arg)
> > > >
> > > > acpi_os_printf("\nInternal object sizes:\n\n");
> > > >
> > > > - acpi_os_printf("Common %3d\n",
> > > > + acpi_os_printf("Common %3lu\n",
> > > > sizeof(struct acpi_object_common));
> > > > - acpi_os_printf("Number %3d\n",
> > > > + acpi_os_printf("Number %3lu\n",
> > > > sizeof(struct acpi_object_integer));
> > > > - acpi_os_printf("String %3d\n",
> > > > + acpi_os_printf("String %3lu\n",
> > > > sizeof(struct acpi_object_string));
> > > > - acpi_os_printf("Buffer %3d\n",
> > > > + acpi_os_printf("Buffer %3lu\n",
> > > > sizeof(struct acpi_object_buffer));
> > > > - acpi_os_printf("Package %3d\n",
> > > > + acpi_os_printf("Package %3lu\n",
> > > > sizeof(struct acpi_object_package));
> > > > - acpi_os_printf("BufferField %3d\n",
> > > > + acpi_os_printf("BufferField %3lu\n",
> > > > sizeof(struct acpi_object_buffer_field));
> > > > - acpi_os_printf("Device %3d\n",
> > > > + acpi_os_printf("Device %3lu\n",
> > > > sizeof(struct acpi_object_device));
> > > > - acpi_os_printf("Event %3d\n",
> > > > + acpi_os_printf("Event %3lu\n",
> > > > sizeof(struct acpi_object_event));
> > > > - acpi_os_printf("Method %3d\n",
> > > > + acpi_os_printf("Method %3lu\n",
> > > > sizeof(struct acpi_object_method));
> > > > - acpi_os_printf("Mutex %3d\n",
> > > > + acpi_os_printf("Mutex %3lu\n",
> > > > sizeof(struct acpi_object_mutex));
> > > > - acpi_os_printf("Region %3d\n",
> > > > + acpi_os_printf("Region %3lu\n",
> > > > sizeof(struct acpi_object_region));
> > > > - acpi_os_printf("PowerResource %3d\n",
> > > > + acpi_os_printf("PowerResource %3lu\n",
> > > > sizeof(struct acpi_object_power_resource));
> > > > - acpi_os_printf("Processor %3d\n",
> > > > + acpi_os_printf("Processor %3lu\n",
> > > > sizeof(struct acpi_object_processor));
> > > > - acpi_os_printf("ThermalZone %3d\n",
> > > > + acpi_os_printf("ThermalZone %3lu\n",
> > > > sizeof(struct acpi_object_thermal_zone));
> > > > - acpi_os_printf("RegionField %3d\n",
> > > > + acpi_os_printf("RegionField %3lu\n",
> > > > sizeof(struct acpi_object_region_field));
> > > > - acpi_os_printf("BankField %3d\n",
> > > > + acpi_os_printf("BankField %3lu\n",
> > > > sizeof(struct acpi_object_bank_field));
> > > > - acpi_os_printf("IndexField %3d\n",
> > > > + acpi_os_printf("IndexField %3lu\n",
> > > > sizeof(struct acpi_object_index_field));
> > > > - acpi_os_printf("Reference %3d\n",
> > > > + acpi_os_printf("Reference %3lu\n",
> > > > sizeof(struct acpi_object_reference));
> > > > - acpi_os_printf("Notify %3d\n",
> > > > + acpi_os_printf("Notify %3lu\n",
> > > > sizeof(struct acpi_object_notify_handler));
> > > > - acpi_os_printf("AddressSpace %3d\n",
> > > > + acpi_os_printf("AddressSpace %3lu\n",
> > > > sizeof(struct acpi_object_addr_handler));
> > > > - acpi_os_printf("Extra %3d\n",
> > > > + acpi_os_printf("Extra %3lu\n",
> > > > sizeof(struct acpi_object_extra));
> > > > - acpi_os_printf("Data %3d\n",
> > > > + acpi_os_printf("Data %3lu\n",
> > > > sizeof(struct acpi_object_data));
> > > >
> > > > acpi_os_printf("\n");
> > > >
> > > > - acpi_os_printf("ParseObject %3d\n",
> > > > + acpi_os_printf("ParseObject %3lu\n",
> > > > sizeof(struct acpi_parse_obj_common));
> > > > - acpi_os_printf("ParseObjectNamed %3d\n",
> > > > + acpi_os_printf("ParseObjectNamed %3lu\n",
> > > > sizeof(struct acpi_parse_obj_named));
> > > > - acpi_os_printf("ParseObjectAsl %3d\n",
> > > > + acpi_os_printf("ParseObjectAsl %3lu\n",
> > > > sizeof(struct acpi_parse_obj_asl));
> > > > - acpi_os_printf("OperandObject %3d\n",
> > > > + acpi_os_printf("OperandObject %3lu\n",
> > > > sizeof(union acpi_operand_object));
> > > > - acpi_os_printf("NamespaceNode %3d\n",
> > > > + acpi_os_printf("NamespaceNode %3lu\n",
> > > > sizeof(struct acpi_namespace_node));
> > > > - acpi_os_printf("AcpiObject %3d\n",
> > > > + acpi_os_printf("AcpiObject %3lu\n",
> > > > sizeof(union acpi_object));
> > > >
> > > > acpi_os_printf("\n");
> > > >
> > > > - acpi_os_printf("Generic State %3d\n",
> > > > + acpi_os_printf("Generic State %3lu\n",
> > > > sizeof(union acpi_generic_state));
> > > > - acpi_os_printf("Common State %3d\n",
> > > > + acpi_os_printf("Common State %3lu\n",
> > > > sizeof(struct acpi_common_state));
> > > > - acpi_os_printf("Control State %3d\n",
> > > > + acpi_os_printf("Control State %3lu\n",
> > > > sizeof(struct acpi_control_state));
> > > > - acpi_os_printf("Update State %3d\n",
> > > > + acpi_os_printf("Update State %3lu\n",
> > > > sizeof(struct acpi_update_state));
> > > > - acpi_os_printf("Scope State %3d\n",
> > > > + acpi_os_printf("Scope State %3lu\n",
> > > > sizeof(struct acpi_scope_state));
> > > > - acpi_os_printf("Parse Scope %3d\n",
> > > > + acpi_os_printf("Parse Scope %3lu\n",
> > > > sizeof(struct acpi_pscope_state));
> > > > - acpi_os_printf("Package State %3d\n",
> > > > + acpi_os_printf("Package State %3lu\n",
> > > > sizeof(struct acpi_pkg_state));
> > > > - acpi_os_printf("Thread State %3d\n",
> > > > + acpi_os_printf("Thread State %3lu\n",
> > > > sizeof(struct acpi_thread_state));
> > > > - acpi_os_printf("Result Values %3d\n",
> > > > + acpi_os_printf("Result Values %3lu\n",
> > > > sizeof(struct acpi_result_values));
> > > > - acpi_os_printf("Notify Info %3d\n",
> > > > + acpi_os_printf("Notify Info %3lu\n",
> > > > sizeof(struct acpi_notify_info));
> > > > break;
> > > >
> > > > diff --git a/drivers/acpi/acpica/utdebug.c
> > > > b/drivers/acpi/acpica/utdebug.c index 044df9b0356e..b4cdb9c14a87
> > > > 100644
> > > > --- a/drivers/acpi/acpica/utdebug.c
> > > > +++ b/drivers/acpi/acpica/utdebug.c
> > > > @@ -189,7 +189,7 @@ acpi_debug_print(u32 requested_debug_level,
> > > > * Display the module name, current line number, thread ID
> (if requested),
> > > > * current procedure nesting level, and the current procedure
> name
> > > > */
> > > > - acpi_os_printf("%9s-%04ld ", module_name, line_number);
> > > > + acpi_os_printf("%9s-%04u ", module_name, line_number);
> > > >
> > > > #ifdef ACPI_APPLICATION
> > > > /*
> > >
> > > Please split above changes into a separate patch.
> > > I'm not sure if the changes can break other compilers.
> > > Please clone https://github.com/acpica/acpica, and submit a pull
> > > request there to have more ACPICA reviewers.
> > >
> > > > diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
> > > > index f3414c83abb1..48b21490bbeb 100644
> > > > --- a/include/acpi/acpiosxf.h
> > > > +++ b/include/acpi/acpiosxf.h
> > > > @@ -337,11 +337,12 @@ acpi_status acpi_os_signal(u32 function,
> void *info);
> > > > * Debug print routines
> > > > */
> > > > #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_printf
> > > > +__printf(1, 2)
> > > > void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format,
> > > > ...); #endif
> > > >
> > > > #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_vprintf
> > > > -void acpi_os_vprintf(const char *format, va_list args);
> > > > +__printf(1, 0) void acpi_os_vprintf(const char *format, va_list
> > > > +args);
> > > > #endif
> > > >
> > > > #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
> > >
> > > You can use ACPI_PRINTF_LIKE macro instead.
> > > This can directly go into Linux upstream.
> > > You can prepare a different pull request for ACPICA upstream or I
> > > can help to back port the change.
> > >
> > > Thanks
> > > Lv
> > >
> > > > --
> > > > 2.7.4
> > > >
> > > >
> > > > --
> > > > Kees Cook
> > > > Nexus Security
> > > _______________________________________________
> > > Devel mailing list
> > > Devel@...ica.org
> > > https://lists.acpica.org/mailman/listinfo/devel
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