| Message ID | 20240911010927.741343-1-lihongbo22@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | coccinelle: Add some rules for string_chioces helpers. | expand |
Hi, Gently ping for this. Thanks, Hongbo On 2024/9/11 9:09, Hongbo Li wrote: > We found that many of the detection rules for helpers in > string_choices.h are missing. This series of patches is > intended to complete these rules. We have verified in the > latest kernel tree that these rules can detect many places > where the string choices helper can be used as a replacement. > > Here are some of the examples: > > ``` > drivers/gpio/gpio-mvebu.c:917:6-18: opportunity for str_lo_hi(in_pol & msk) > drivers/pinctrl/nomadik/pinctrl-nomadik.c:1109:16-19: opportunity for str_high_low(val) > drivers/pinctrl/nomadik/pinctrl-nomadik.c:1116:13-16: opportunity for str_high_low(val > drivers/gpio/gpio-wcove.c:396:6-16: opportunity for str_hi_lo(ctli & 0x1) > drivers/pci/hotplug/pnv_php.c:367:10-41: opportunity for str_on_off(state == OPAL_PCI_SLOT_POWER_ON) > drivers/mtd/nand/raw/brcmnand/brcmnand.c:1844:40-63: opportunity for str_read_write(edu_cmd == EDU_CMD_READ) > drivers/mtd/nand/raw/brcmnand/brcmnand.c:1437:33-35: opportunity for str_on_off(wp) > drivers/mtd/nand/raw/brcmnand/brcmnand.c:1467:9-11: opportunity for str_on_off(wp) > drivers/greybus/svc.c:76:9-37: opportunity for str_enabled_disabled(gb_svc_watchdog_enabled ( svc )) > drivers/thermal/thermal_sysfs.c:59:29-36: opportunity for str_enabled_disabled(enabled) > drivers/dma-buf/st-dma-fence.c:508:10-35: opportunity for str_yes_no(dma_fence_is_signaled ( f2 )) > drivers/mmc/host/omap_hsmmc.c:1644:7-43: opportunity for str_enabled_disabled(host -> flags & HSMMC_SDIO_IRQ_ENABLED) > drivers/input/mouse/elan_i2c_core.c:202:2-4: opportunity for str_on_off(on) > drivers/macintosh/via-pmu.c:626:10-28: opportunity for str_enabled_disabled(option_server_mode) > drivers/usb/mtu3/mtu3_debugfs.c:482:5-39: opportunity for str_on_off(regulator_is_enabled ( otg_sx -> vbus )) > drivers/net/wireless/intel/iwlwifi/mvm/tt.c:355:4-10: opportunity for str_enable_disable(enable) > drivers/nfc/pn544/i2c.c:215:7-20: opportunity for str_low_high(polarity == 0) > drivers/media/tuners/tda18250.c:110:3-12: opportunity for str_true_false(triggered) > drivers/mtd/tests/torturetest.c:191:30-35: opportunity for str_enabled_disabled(check) > drivers/bus/intel-ixp4xx-eb.c:225:5-8: opportunity for str_enabled_disabled(val) > drivers/net/ethernet/huawei/hinic/hinic_port.c:1133:3-9: opportunity for str_enable_disable(enable) > drivers/net/ethernet/huawei/hinic/hinic_port.c:1245:3-9: opportunity for str_enable_disable(pfc_en) > drivers/media/pci/cx23885/cimax2.c:227:4-8: opportunity for str_read_write(read) > drivers/media/usb/em28xx/em28xx-video.c:941:4-9: opportunity for str_enabled_disabled(flags) > ``` > > Changes since v2: https://patchwork.kernel.org/project/linux-hardening/cover/20240904091451.3328272-1-lihongbo22@huawei.com/ > - Remove unnecessary outer parentheses for new rules as suggested by julia, thanks. > - Remove unnecessary outer parentheses for old rules. > > > Changes since v1: https://patchwork.kernel.org/project/linux-hardening/cover/20240829112455.232263-1-lihongbo22@huawei.com/ > - Add more rules for helpers in string_choices.h. > > Thanks, > Hongbo. > > Hongbo Li (10): > coccinelle: Add rules to find str_true_false() replacements > coccinelle: Add rules to find str_false_true() replacements > coccinelle: Add rules to find str_hi{gh}_lo{w}() replacements > coccinelle: Add rules to find str_lo{w}_hi{gh}() replacements > coccinelle: Add rules to find str_enable{d}_disable{d}() replacements > coccinelle: Add rules to find str_read_write() replacements > coccinelle: Add rules to find str_write_read() replacements > coccinelle: Add rules to find str_on_off() replacements > coccinelle: Add rules to find str_yes_no() replacements > coccinelle: Remove unnecessary parentheses for only one possible > change. > > scripts/coccinelle/api/string_choices.cocci | 240 +++++++++++++++++++- > 1 file changed, 232 insertions(+), 8 deletions(-) >
We found that many of the detection rules for helpers in string_choices.h are missing. This series of patches is intended to complete these rules. We have verified in the latest kernel tree that these rules can detect many places where the string choices helper can be used as a replacement. Here are some of the examples: ``` drivers/gpio/gpio-mvebu.c:917:6-18: opportunity for str_lo_hi(in_pol & msk) drivers/pinctrl/nomadik/pinctrl-nomadik.c:1109:16-19: opportunity for str_high_low(val) drivers/pinctrl/nomadik/pinctrl-nomadik.c:1116:13-16: opportunity for str_high_low(val drivers/gpio/gpio-wcove.c:396:6-16: opportunity for str_hi_lo(ctli & 0x1) drivers/pci/hotplug/pnv_php.c:367:10-41: opportunity for str_on_off(state == OPAL_PCI_SLOT_POWER_ON) drivers/mtd/nand/raw/brcmnand/brcmnand.c:1844:40-63: opportunity for str_read_write(edu_cmd == EDU_CMD_READ) drivers/mtd/nand/raw/brcmnand/brcmnand.c:1437:33-35: opportunity for str_on_off(wp) drivers/mtd/nand/raw/brcmnand/brcmnand.c:1467:9-11: opportunity for str_on_off(wp) drivers/greybus/svc.c:76:9-37: opportunity for str_enabled_disabled(gb_svc_watchdog_enabled ( svc )) drivers/thermal/thermal_sysfs.c:59:29-36: opportunity for str_enabled_disabled(enabled) drivers/dma-buf/st-dma-fence.c:508:10-35: opportunity for str_yes_no(dma_fence_is_signaled ( f2 )) drivers/mmc/host/omap_hsmmc.c:1644:7-43: opportunity for str_enabled_disabled(host -> flags & HSMMC_SDIO_IRQ_ENABLED) drivers/input/mouse/elan_i2c_core.c:202:2-4: opportunity for str_on_off(on) drivers/macintosh/via-pmu.c:626:10-28: opportunity for str_enabled_disabled(option_server_mode) drivers/usb/mtu3/mtu3_debugfs.c:482:5-39: opportunity for str_on_off(regulator_is_enabled ( otg_sx -> vbus )) drivers/net/wireless/intel/iwlwifi/mvm/tt.c:355:4-10: opportunity for str_enable_disable(enable) drivers/nfc/pn544/i2c.c:215:7-20: opportunity for str_low_high(polarity == 0) drivers/media/tuners/tda18250.c:110:3-12: opportunity for str_true_false(triggered) drivers/mtd/tests/torturetest.c:191:30-35: opportunity for str_enabled_disabled(check) drivers/bus/intel-ixp4xx-eb.c:225:5-8: opportunity for str_enabled_disabled(val) drivers/net/ethernet/huawei/hinic/hinic_port.c:1133:3-9: opportunity for str_enable_disable(enable) drivers/net/ethernet/huawei/hinic/hinic_port.c:1245:3-9: opportunity for str_enable_disable(pfc_en) drivers/media/pci/cx23885/cimax2.c:227:4-8: opportunity for str_read_write(read) drivers/media/usb/em28xx/em28xx-video.c:941:4-9: opportunity for str_enabled_disabled(flags) ``` Changes since v2: https://patchwork.kernel.org/project/linux-hardening/cover/20240904091451.3328272-1-lihongbo22@huawei.com/ - Remove unnecessary outer parentheses for new rules as suggested by julia, thanks. - Remove unnecessary outer parentheses for old rules. Changes since v1: https://patchwork.kernel.org/project/linux-hardening/cover/20240829112455.232263-1-lihongbo22@huawei.com/ - Add more rules for helpers in string_choices.h. Thanks, Hongbo. Hongbo Li (10): coccinelle: Add rules to find str_true_false() replacements coccinelle: Add rules to find str_false_true() replacements coccinelle: Add rules to find str_hi{gh}_lo{w}() replacements coccinelle: Add rules to find str_lo{w}_hi{gh}() replacements coccinelle: Add rules to find str_enable{d}_disable{d}() replacements coccinelle: Add rules to find str_read_write() replacements coccinelle: Add rules to find str_write_read() replacements coccinelle: Add rules to find str_on_off() replacements coccinelle: Add rules to find str_yes_no() replacements coccinelle: Remove unnecessary parentheses for only one possible change. scripts/coccinelle/api/string_choices.cocci | 240 +++++++++++++++++++- 1 file changed, 232 insertions(+), 8 deletions(-)