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fd90410e |
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09-Oct-2023 |
Arnd Bergmann <arnd@arndb.de> |
vgacon, arch/*: remove unused screen_info definitions A number of architectures either kept the screen_info definition for historical purposes as it used to be required by the generic VT code, or they copied it from another architecture in order to build the VGA console driver in an allmodconfig build. The mips definition is used by some platforms, but the initialization on jazz is not needed. Now that vgacon no longer builds on these architectures, remove the stale definitions and initializations. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Acked-by: Guo Ren <guoren@kernel.org> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20231009211845.3136536-5-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6a22e017 |
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30-May-2023 |
Azeem Shaikh <azeemshaikh38@gmail.com> |
nios2: Replace all non-returning strlcpy with strscpy strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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#
9523b33c |
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24-Sep-2021 |
Randy Dunlap <rdunlap@infradead.org> |
NIOS2: setup.c: drop unused variable 'dram_start' This is a nuisance when CONFIG_WERROR is set, so drop the variable declaration since the code that used it was removed. ../arch/nios2/kernel/setup.c: In function 'setup_arch': ../arch/nios2/kernel/setup.c:152:13: warning: unused variable 'dram_start' [-Wunused-variable] 152 | int dram_start; Fixes: 7f7bc20bc41a ("nios2: Don't use _end for calculating min_low_pfn") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Andreas Oetken <andreas.oetken@siemens.com> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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#
4154267a |
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07-Jul-2021 |
Kefeng Wang <wangkefeng.wang@huawei.com> |
nios2: convert to setup_initial_init_mm() Use setup_initial_init_mm() helper to simplify code. Link: https://lkml.kernel.org/r/20210608083418.137226-10-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
7f7bc20b |
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18-Feb-2021 |
Andreas Oetken <andreas.oetken@siemens.com> |
nios2: Don't use _end for calculating min_low_pfn If there is a initramfs linked into the kernel which will be freed later on there is free memory somewhere between _etext and _end, thus using _end for min_low_pfn is not correct. This may lead to issues in dma_capable when checking 'min(addr, end) < phys_to_dma(dev, PFN_PHYS(min_low_pfn)))' as the address addr might be below min_low_pfn. Picked find_limits from architecture arm for applying min_low_pfn and max_low_pfn. Maybe using _etext for min_low_pfn would be fine too. Signed-off-by: Andreas Oetken <andreas.oetken@siemens.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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#
70125022 |
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18-Dec-2019 |
Arvind Sankar <nivedita@alum.mit.edu> |
arch/nios2/setup: Drop dummy_con initialization con_init in tty/vt.c will now set conswitchp to dummy_con if it's unset. Drop it from arch setup code. Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20191218214506.49252-15-nivedita@alum.mit.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
91d99a72 |
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20-Sep-2019 |
Wang Xiayang <xywang.sjtu@sjtu.edu.cn> |
nios2: force the string buffer NULL-terminated strncpy() does not ensure NULL-termination when the input string size equals to the destination buffer size COMMAND_LINE_SIZE. Besides, grep under arch/ with 'boot_command_line' shows no other arch-specific code uses strncpy() when copying boot_command_line. Use strlcpy() instead. This issue is identified by a Coccinelle script. Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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#
57c8a661 |
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30-Oct-2018 |
Mike Rapoport <rppt@linux.vnet.ibm.com> |
mm: remove include/linux/bootmem.h Move remaining definitions and declarations from include/linux/bootmem.h into include/linux/memblock.h and remove the redundant header. The includes were replaced with the semantic patch below and then semi-automated removal of duplicated '#include <linux/memblock.h> @@ @@ - #include <linux/bootmem.h> + #include <linux/memblock.h> [sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au [sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au [sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal] Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
00423792 |
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26-Oct-2018 |
Mike Rapoport <rppt@linux.vnet.ibm.com> |
nios2: switch to NO_BOOTMEM Remove bootmem bitmap initialization and replace reserve_bootmem() with memblock_reserve(). Link: http://lkml.kernel.org/r/1533326330-31677-5-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rob Herring <robh@kernel.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
a811c05c |
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26-Oct-2018 |
Mike Rapoport <rppt@linux.vnet.ibm.com> |
nios2: use generic early_init_dt_add_memory_arch All we have to do is to enable memblock, the generic FDT code will take care of the rest. Link: http://lkml.kernel.org/r/1533326330-31677-4-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rob Herring <robh@kernel.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
e118c3fe |
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11-May-2017 |
Tobias Klauser <tklauser@distanz.ch> |
nios2: remove custom early console implementation As of commits d8f347ba35cf ("nios2: enable earlycon support"), 0dcc0542a006 ("serial: altera_jtaguart: add earlycon support") and 4d9d7d896d77 ("serial: altera_uart: add earlycon support"), the nios2 architecture and the altera_uart/altera_jtaguart drivers support earlycon. Thus, the custom early console implementation for nios2 is no longer necessary to get early boot messages. Remove it and rely fully on earlycon support. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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#
44a4ed42 |
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02-Apr-2017 |
Tobias Klauser <tklauser@distanz.ch> |
nios2: enable earlycon support Enable generic earlycon support for nios2. This e.g. allows to use a 8250/16650 UART as earlycon. In order to get the earlycon, we just need to call parse_early_param() in early_init_devtree() as soon as the device tree is initially scanned. By adding an stdout-path property to the dts (done in this patch for 10m50_devboard), the earlycon can be used. In order to provide early printk support, we need to provide a dummy implementation of early_console_write(), so that arch/nios2/kernel/early_printk.c can still be compiled if neither SERIAL_ALTERA_JTAGUART_CONSOLE nor SERIAL_ALTERA_UART_CONSOLE is selected. As soon as the altera_uart and altera_jtaguart support earlycon, the entire file can be removed. Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
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#
921d701e |
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02-Apr-2017 |
Tobias Klauser <tklauser@distanz.ch> |
nios2: reserve boot memory for device tree Make sure to reserve the boot memory for the flattened device tree. Otherwise it might get overwritten, e.g. when initial_boot_params is copied, leading to a corrupted FDT and a boot hang/crash: bootconsole [early0] enabled Early console on uart16650 initialized at 0xf8001600 OF: fdt: Error -11 processing FDT Kernel panic - not syncing: setup_cpuinfo: No CPU found in devicetree! ---[ end Kernel panic - not syncing: setup_cpuinfo: No CPU found in devicetree! Guenter Roeck says: > I think I found the problem. In unflatten_and_copy_device_tree(), with added > debug information: > > OF: fdt: initial_boot_params=c861e400, dt=c861f000 size=28874 (0x70ca) > > ... and then initial_boot_params is copied to dt, which results in corrupted > fdt since the memory overlaps. Looks like the initial_boot_params memory > is not reserved and (re-)allocated by early_init_dt_alloc_memory_arch(). Cc: stable@vger.kernel.org Reported-by: Guenter Roeck <linux@roeck-us.net> Reference: http://lkml.kernel.org/r/20170226210338.GA19476@roeck-us.net Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
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#
9164bb4a |
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03-Feb-2017 |
Ingo Molnar <mingo@kernel.org> |
sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> Update all usage sites first. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
744606c7 |
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07-Dec-2016 |
Ley Foon Tan <ley.foon.tan@intel.com> |
nios2: add screen_info Fix build error when enable VGA console. drivers/video/console/vgacon.c:586: undefined reference to `screen_info' Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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#
4db2196d |
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30-Sep-2015 |
Marek Vasut <marex@denx.de> |
nios2: Fix unused variable warning Fix the following compiler splat by adding __maybe_unused annotation to the variable. Using this particular annotation has the least ugly impact on the code compared to using ifdeffery. arch/nios2/kernel/setup.c: In function 'nios2_boot_init': arch/nios2/kernel/setup.c:107:7: warning: unused variable 'cmdline_passed' [-Wunused-variable] char cmdline_passed[COMMAND_LINE_SIZE] = { 0, }; ^ Signed-off-by: Marek Vasut <marex@denx.de> Acked-by: Ley Foon Tan <lftan@altera.com>
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#
e8bf5bc7 |
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10-Feb-2015 |
Ley Foon Tan <lftan@altera.com> |
nios2: add early printk support Signed-off-by: Ley Foon Tan <lftan@altera.com>
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#
27d22413 |
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06-Nov-2014 |
Ley Foon Tan <lftan@altera.com> |
nios2: Kernel booting and initialization This patch adds the kernel booting and the initial setup code. Signed-off-by: Ley Foon Tan <lftan@altera.com>
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