[PATCH] iwlwifi: Deinline iwl_{read,write}{8,32}
From: Denys Vlasenko <hidden>
Date: 2015-07-14 12:22:50
Also in:
linux-wireless, lkml
Subsystem:
networking drivers (wireless), the rest · Maintainers:
Johannes Berg, Linus Torvalds
With CONFIG_IWLWIFI_DEVICE_TRACING=y, these functions are rather large, too big for inlining. With this .config: http://busybox.net/~vda/kernel_config, after uninlining these functions have sizes and callsite counts as follows: iwl_read32 475 bytes, 51 callsites iwl_write32 477 bytes, 90 callsites iwl_write8 493 bytes, 3 callsites Reduction in size is about 74,000 bytes: text data bss dec hex filename 90758147 17226024 36659200 144643371 89f152b vmlinux0 90687995 17221928 36659200 144569123 89df323 vmlinux.after Signed-off-by: Denys Vlasenko <redacted> CC: Johannes Berg <redacted> CC: Emmanuel Grumbach <redacted> Cc: "John W. Linville" <redacted> Cc: Intel Linux Wireless <redacted> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org --- drivers/net/wireless/iwlwifi/iwl-io.c | 7 +++++++ drivers/net/wireless/iwlwifi/iwl-io.h | 39 +++++++++++++++++++++-------------- 2 files changed, 30 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index 27c66e4..aed121e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c@@ -38,6 +38,13 @@ #define IWL_POLL_INTERVAL 10 /* microseconds */ +#if defined(CONFIG_IWLWIFI_DEVICE_TRACING) +IWL_READ_WRITE( /*not inlined*/ ) +IWL_EXPORT_SYMBOL(iwl_write8); +IWL_EXPORT_SYMBOL(iwl_write32); +IWL_EXPORT_SYMBOL(iwl_read32); +#endif + int iwl_poll_bit(struct iwl_trans *trans, u32 addr, u32 bits, u32 mask, int timeout) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index 705d12c..3c9d2a8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h@@ -32,24 +32,31 @@ #include "iwl-devtrace.h" #include "iwl-trans.h" -static inline void iwl_write8(struct iwl_trans *trans, u32 ofs, u8 val) -{ - trace_iwlwifi_dev_iowrite8(trans->dev, ofs, val); - iwl_trans_write8(trans, ofs, val); -} - -static inline void iwl_write32(struct iwl_trans *trans, u32 ofs, u32 val) -{ - trace_iwlwifi_dev_iowrite32(trans->dev, ofs, val); - iwl_trans_write32(trans, ofs, val); +#define IWL_READ_WRITE(static_inline) \ +static_inline void iwl_write8(struct iwl_trans *trans, u32 ofs, u8 val) \ +{ \ + trace_iwlwifi_dev_iowrite8(trans->dev, ofs, val); \ + iwl_trans_write8(trans, ofs, val); \ +} \ +static_inline void iwl_write32(struct iwl_trans *trans, u32 ofs, u32 val) \ +{ \ + trace_iwlwifi_dev_iowrite32(trans->dev, ofs, val); \ + iwl_trans_write32(trans, ofs, val); \ +} \ +static_inline u32 iwl_read32(struct iwl_trans *trans, u32 ofs) \ +{ \ + u32 val = iwl_trans_read32(trans, ofs); \ + trace_iwlwifi_dev_ioread32(trans->dev, ofs, val); \ + return val; \ } -static inline u32 iwl_read32(struct iwl_trans *trans, u32 ofs) -{ - u32 val = iwl_trans_read32(trans, ofs); - trace_iwlwifi_dev_ioread32(trans->dev, ofs, val); - return val; -} +#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) +IWL_READ_WRITE(static inline) +#else +void iwl_write8(struct iwl_trans *trans, u32 ofs, u8 val); +void iwl_write32(struct iwl_trans *trans, u32 ofs, u32 val); +u32 iwl_read32(struct iwl_trans *trans, u32 ofs); +#endif static inline void iwl_set_bit(struct iwl_trans *trans, u32 reg, u32 mask) {
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1.8.1.4