From 6acc7d485c24c00e111c61b2e6dff9180faebcae Mon Sep 17 00:00:00 2001 From: Dmitri Vorobiev Date: Sat, 21 Nov 2009 22:34:41 +0200 Subject: MIPS: Fix and enhance built-in kernel command line Currently, MIPS kernels silently overwrite kernel command-line parameters hardcoded in CONFIG_CMDLINE by the ones received from firmware. Therefore, using firmware remains the only reliable method to transfer the command-line parameters, which is not always desirable or convenient, and the CONFIG_CMDLINE option is thereby effectively rendered useless. This patch fixes the problem described above and introduces a more flexible scheme of handling the kernel command line, in a manner identical to what is currently used for x86. The default behavior, i.e. when CONFIG_CMDLINE_BOOL is not defined, retains the existing semantics, and firmware command-line arguments override the hardcoded ones. [Ralf: I fixed up all the defconfig files so the stay unaffected by this change.] Signed-off-by: Dmitri Vorobiev Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/689/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug index 23817bc..d2b88a0 100644 --- a/arch/mips/Kconfig.debug +++ b/arch/mips/Kconfig.debug @@ -20,15 +20,52 @@ config EARLY_PRINTK doesn't cooperate with an X server. You should normally say N here, unless you want to debug such a crash. +config CMDLINE_BOOL + bool "Built-in kernel command line" + default n + help + For most systems, it is firmware or second stage bootloader that + by default specifies the kernel command line options. However, + it might be necessary or advantageous to either override the + default kernel command line or add a few extra options to it. + For such cases, this option allows you to hardcode your own + command line options directly into the kernel. For that, you + should choose 'Y' here, and fill in the extra boot arguments + in CONFIG_CMDLINE. + + The built-in options will be concatenated to the default command + line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default + command line will be ignored and replaced by the built-in string. + + Most MIPS systems will normally expect 'N' here and rely upon + the command line from the firmware or the second-stage bootloader. + config CMDLINE string "Default kernel command string" + depends on CMDLINE_BOOL default "" help On some platforms, there is currently no way for the boot loader to - pass arguments to the kernel. For these platforms, you can supply - some command-line options at build time by entering them here. In - other cases you can specify kernel args so that you don't have - to set them up in board prom initialization routines. + pass arguments to the kernel. For these platforms, and for the cases + when you want to add some extra options to the command line or ignore + the default command line, you can supply some command-line options at + build time by entering them here. In other cases you can specify + kernel args so that you don't have to set them up in board prom + initialization routines. + + For more information, see the CMDLINE_BOOL and CMDLINE_OVERRIDE + options. + +config CMDLINE_OVERRIDE + bool "Built-in command line overrides firware arguments" + default n + depends on CMDLINE_BOOL + help + By setting this option to 'Y' you will have your kernel ignore + command line arguments from firmware or second stage bootloader. + Instead, the built-in command line will be used exclusively. + + Normally, you will choose 'N' here. config DEBUG_STACK_USAGE bool "Enable stack utilization instrumentation" diff --git a/arch/mips/configs/ar7_defconfig b/arch/mips/configs/ar7_defconfig index 1d5ec3c..5a5b6ba 100644 --- a/arch/mips/configs/ar7_defconfig +++ b/arch/mips/configs/ar7_defconfig @@ -1051,7 +1051,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/bcm47xx_defconfig b/arch/mips/configs/bcm47xx_defconfig index 8715de1..267bd46 100644 --- a/arch/mips/configs/bcm47xx_defconfig +++ b/arch/mips/configs/bcm47xx_defconfig @@ -1852,7 +1852,7 @@ CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/bcm63xx_defconfig b/arch/mips/configs/bcm63xx_defconfig index efa6598..7fee027 100644 --- a/arch/mips/configs/bcm63xx_defconfig +++ b/arch/mips/configs/bcm63xx_defconfig @@ -941,7 +941,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS0,115200" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index 1f0228d..c2f06e3 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -1236,7 +1236,7 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_SB1XXX_CORELIS is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig index be81bf6..72b7e45 100644 --- a/arch/mips/configs/capcella_defconfig +++ b/arch/mips/configs/capcella_defconfig @@ -782,7 +782,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="mem=32M console=ttyVR0,38400" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/cavium-octeon_defconfig b/arch/mips/configs/cavium-octeon_defconfig index 22819d9..c8507bc 100644 --- a/arch/mips/configs/cavium-octeon_defconfig +++ b/arch/mips/configs/cavium-octeon_defconfig @@ -820,7 +820,7 @@ CONFIG_SYSCTL_SYSCALL_CHECK=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig index b150286..49e6131 100644 --- a/arch/mips/configs/cobalt_defconfig +++ b/arch/mips/configs/cobalt_defconfig @@ -1125,7 +1125,7 @@ CONFIG_FRAME_WARN=1024 # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_MEMORY_INIT is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig index 63cdea2..68e90cd 100644 --- a/arch/mips/configs/db1000_defconfig +++ b/arch/mips/configs/db1000_defconfig @@ -1089,7 +1089,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig index 7ae0f9a..9081283 100644 --- a/arch/mips/configs/db1100_defconfig +++ b/arch/mips/configs/db1100_defconfig @@ -1089,7 +1089,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig index a6d9e1f..dabf030 100644 --- a/arch/mips/configs/db1200_defconfig +++ b/arch/mips/configs/db1200_defconfig @@ -1171,7 +1171,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="mem=48M" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig index a3a462b..a151313 100644 --- a/arch/mips/configs/db1500_defconfig +++ b/arch/mips/configs/db1500_defconfig @@ -1389,7 +1389,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig index bfc962e..6b64339 100644 --- a/arch/mips/configs/db1550_defconfig +++ b/arch/mips/configs/db1550_defconfig @@ -1206,7 +1206,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig index 7eb6d1b..cbb4d86 100644 --- a/arch/mips/configs/decstation_defconfig +++ b/arch/mips/configs/decstation_defconfig @@ -881,7 +881,7 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig index c6b1d6b..52968c4 100644 --- a/arch/mips/configs/e55_defconfig +++ b/arch/mips/configs/e55_defconfig @@ -560,7 +560,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyVR0,19200 ide0=0x1f0,0x3f6,40 mem=8M" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig index 17341a0..a09dd03 100644 --- a/arch/mips/configs/fuloong2e_defconfig +++ b/arch/mips/configs/fuloong2e_defconfig @@ -1710,7 +1710,7 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig index 3471ac9..222d7ec 100644 --- a/arch/mips/configs/ip22_defconfig +++ b/arch/mips/configs/ip22_defconfig @@ -1187,7 +1187,7 @@ CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DYNAMIC_PRINTK_DEBUG=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 26127a8..ed84b4c 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig @@ -939,7 +939,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig index ac6c850..dab2e5a 100644 --- a/arch/mips/configs/ip28_defconfig +++ b/arch/mips/configs/ip28_defconfig @@ -815,7 +815,7 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig index 56553b1..1841c88 100644 --- a/arch/mips/configs/ip32_defconfig +++ b/arch/mips/configs/ip32_defconfig @@ -1125,7 +1125,7 @@ CONFIG_SYSCTL_SYSCALL_CHECK=y # CONFIG_DYNAMIC_PRINTK_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig index 9db23fd..14c2ab3 100644 --- a/arch/mips/configs/jazz_defconfig +++ b/arch/mips/configs/jazz_defconfig @@ -1373,7 +1373,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig index 11fec0e..4d66c44 100644 --- a/arch/mips/configs/jmr3927_defconfig +++ b/arch/mips/configs/jmr3927_defconfig @@ -834,7 +834,7 @@ CONFIG_SYSCTL_SYSCALL_CHECK=y # CONFIG_DYNAMIC_PRINTK_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig index 2fe15a5..08d481e 100644 --- a/arch/mips/configs/lasat_defconfig +++ b/arch/mips/configs/lasat_defconfig @@ -797,7 +797,7 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig index ddb1c92..b71a0a4 100644 --- a/arch/mips/configs/lemote2f_defconfig +++ b/arch/mips/configs/lemote2f_defconfig @@ -1707,7 +1707,7 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 38d9873..d3c6012 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig @@ -1590,7 +1590,7 @@ CONFIG_FRAME_WARN=1024 # CONFIG_DYNAMIC_PRINTK_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/markeins_defconfig b/arch/mips/configs/markeins_defconfig index 9137571..6a325c0 100644 --- a/arch/mips/configs/markeins_defconfig +++ b/arch/mips/configs/markeins_defconfig @@ -1365,7 +1365,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS0,115200 mem=192m ip=bootp root=/dev/nfs rw" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig index 513e9a4..f77a34e 100644 --- a/arch/mips/configs/mipssim_defconfig +++ b/arch/mips/configs/mipssim_defconfig @@ -634,7 +634,9 @@ CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_FAULT_INJECTION is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="nfsroot=192.168.192.169:/u1/mipsel,timeo=20 ip=dhcp" +# CONFIG_CMDLINE_OVERRIDE is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig index b893f9d..1720305 100644 --- a/arch/mips/configs/mpc30x_defconfig +++ b/arch/mips/configs/mpc30x_defconfig @@ -816,7 +816,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="mem=32M console=ttyVR0,19200 ide0=0x170,0x376,73" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig index 89d2b6a..000d185 100644 --- a/arch/mips/configs/msp71xx_defconfig +++ b/arch/mips/configs/msp71xx_defconfig @@ -1411,7 +1411,7 @@ CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_FAULT_INJECTION is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set # CONFIG_MIPS_UNCACHED is not set diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index 3199668..144b94d 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -3017,7 +3017,7 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig index c36e859..ddf67f6 100644 --- a/arch/mips/configs/pb1100_defconfig +++ b/arch/mips/configs/pb1100_defconfig @@ -1082,7 +1082,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig index 4b43e36..5ec6083 100644 --- a/arch/mips/configs/pb1500_defconfig +++ b/arch/mips/configs/pb1500_defconfig @@ -1199,7 +1199,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig index 7c8d351..6647642 100644 --- a/arch/mips/configs/pb1550_defconfig +++ b/arch/mips/configs/pb1550_defconfig @@ -1192,7 +1192,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/pnx8335-stb225_defconfig b/arch/mips/configs/pnx8335-stb225_defconfig index 77a75f0..848344d5 100644 --- a/arch/mips/configs/pnx8335-stb225_defconfig +++ b/arch/mips/configs/pnx8335-stb225_defconfig @@ -1033,7 +1033,7 @@ CONFIG_FRAME_WARN=1024 # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set # CONFIG_KERNEL_TESTS is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig index 945b27e..9d721fd 100644 --- a/arch/mips/configs/pnx8550-jbs_defconfig +++ b/arch/mips/configs/pnx8550-jbs_defconfig @@ -1214,7 +1214,9 @@ CONFIG_DEBUG_MUTEXES=y CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS1,38400n8 root=/dev/nfs ip=bootp" +# CONFIG_CMDLINE_OVERRIDE is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/pnx8550-stb810_defconfig b/arch/mips/configs/pnx8550-stb810_defconfig index ff0fc0b..ab07ec0 100644 --- a/arch/mips/configs/pnx8550-stb810_defconfig +++ b/arch/mips/configs/pnx8550-stb810_defconfig @@ -1204,7 +1204,9 @@ CONFIG_DEBUG_SLAB=y CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS1,38400n8 root=/dev/nfs ip=bootp" +# CONFIG_CMDLINE_OVERRIDE is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/powertv_defconfig b/arch/mips/configs/powertv_defconfig index 86c8007..7291633 100644 --- a/arch/mips/configs/powertv_defconfig +++ b/arch/mips/configs/powertv_defconfig @@ -1418,7 +1418,9 @@ CONFIG_BRANCH_PROFILE_NONE=y CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set # CONFIG_KMEMCHECK is not set +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="rw dhash_entries=1024 ihash_entries=1024 ip=10.0.1.3:10.0.1.1:10.0.1.1:255.255.255.0:zeus:eth0: root=/dev/nfs nfsroot=/nfsroot/cramfs,wsize=512,rsize=512,tcp nokgdb console=ttyUSB0,115200 memsize=252M" +# CONFIG_CMDLINE_OVERRIDE is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/configs/rb532_defconfig b/arch/mips/configs/rb532_defconfig index a9408db..57a5048 100644 --- a/arch/mips/configs/rb532_defconfig +++ b/arch/mips/configs/rb532_defconfig @@ -1203,7 +1203,7 @@ CONFIG_FRAME_WARN=1024 # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/rbtx49xx_defconfig b/arch/mips/configs/rbtx49xx_defconfig index 1c9a542..21c2022 100644 --- a/arch/mips/configs/rbtx49xx_defconfig +++ b/arch/mips/configs/rbtx49xx_defconfig @@ -1061,7 +1061,7 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index 5873fc5..7903628 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -1693,7 +1693,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # # Security options diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig index 5244716..7f07bf0 100644 --- a/arch/mips/configs/sb1250-swarm_defconfig +++ b/arch/mips/configs/sb1250-swarm_defconfig @@ -960,7 +960,7 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # CONFIG_SB1XXX_CORELIS is not set # diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig index 937b47c..c54d112 100644 --- a/arch/mips/configs/tb0219_defconfig +++ b/arch/mips/configs/tb0219_defconfig @@ -891,7 +891,9 @@ CONFIG_FRAME_WARN=1024 # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="cca=3 mem=64M console=ttyVR0,115200 ip=any root=/dev/nfs" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig index da73584..e7c5cd3 100644 --- a/arch/mips/configs/tb0226_defconfig +++ b/arch/mips/configs/tb0226_defconfig @@ -894,7 +894,9 @@ CONFIG_FRAME_WARN=1024 # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="cca=3 mem=32M console=ttyVR0,115200" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig index 99a0d21..b50032b 100644 --- a/arch/mips/configs/tb0287_defconfig +++ b/arch/mips/configs/tb0287_defconfig @@ -1076,7 +1076,9 @@ CONFIG_FRAME_WARN=1024 # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SAMPLES is not set +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="cca=3 mem=64M console=ttyVR0,115200 ip=any root=/dev/nfs" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig index d3646ea..c02ba08 100644 --- a/arch/mips/configs/workpad_defconfig +++ b/arch/mips/configs/workpad_defconfig @@ -754,7 +754,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyVR0,19200 ide0=0x170,0x376,49 mem=16M" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig index c137831..a35bc41 100644 --- a/arch/mips/configs/wrppmc_defconfig +++ b/arch/mips/configs/wrppmc_defconfig @@ -886,7 +886,9 @@ CONFIG_ENABLE_MUST_CHECK=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_CROSSCOMPILE=y +CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS0,115200n8" +# CONFIG_CMDLINE_OVERRIDE is not set # # Security options diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig index 4a04f0c..e3d68d6 100644 --- a/arch/mips/configs/yosemite_defconfig +++ b/arch/mips/configs/yosemite_defconfig @@ -823,7 +823,7 @@ CONFIG_DEBUG_MUTEXES=y CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" +# CONFIG_CMDLINE_BOOL is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_RUNTIME_DEBUG is not set diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index bd55f71..f9513f9 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -58,8 +58,12 @@ EXPORT_SYMBOL(mips_machtype); struct boot_mem_map boot_mem_map; -static char command_line[COMMAND_LINE_SIZE]; - char arcs_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE; +static char __initdata command_line[COMMAND_LINE_SIZE]; +char __initdata arcs_cmdline[COMMAND_LINE_SIZE]; + +#ifdef CONFIG_CMDLINE_BOOL +static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE; +#endif /* * mips_io_port_base is the begin of the address space to which x86 style @@ -458,8 +462,20 @@ static void __init arch_mem_init(char **cmdline_p) pr_info("Determined physical RAM map:\n"); print_memory_map(); - strlcpy(command_line, arcs_cmdline, sizeof(command_line)); - strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); +#ifdef CONFIG_CMDLINE_BOOL +#ifdef CONFIG_CMDLINE_OVERRIDE + strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); +#else + if (builtin_cmdline[0]) { + strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); + strlcat(arcs_cmdline, builtin_cmdline, COMMAND_LINE_SIZE); + } + strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE); +#endif +#else + strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE); +#endif + strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; -- cgit v0.10.2