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- 07 May, 2018 40 commits
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NeilBrown authored
This lock is never initialized, locked once, and never unlocked. Clearly it is pointless - so remove it. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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NeilBrown authored
mtk_phy_link_adjust takes a spinlock and disables interrupts, but never unlocks. This can leave interrupts disabled on one CPU and various things stop working. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The current code has some barrier macros in it, which are already '#if 0' out, so just remove them. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
This commit cleans the includes in the sd.c file. Those which are not needed are removed, the remaining ones are sorted alphabetically. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The macro HOST_MAX_NUM is never used, so remove it. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Current code uses linked DMA mode only when there is more than one entry in the scatterlist. But the overhead of the linked DMA is very small, so the code is easier when only using linked DMA and this is also the way, the upstream driver mtk-sd handles it. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The msdc_dma_config function currently returns always 0. Remove the return and change to void. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Current code disables the DMA after the transfer. That only changes the transfer mode to non-DMA and does not save any power. This is not necessary any more, because now DMA transfer is always used. The macro for disabling DMA transfer is also removed, because it is not used any more. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The function msdc_set_blknum consists of one (real) line of code and is only called once, so inline it makes the code shorter and more readable. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Current code initialises the variable sg at the beginning of the msdc_dma_config function. This is not necessary, because the variable is assigned by the for_each_sg macro later on. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Current code checks the card status at the beginning of msdc_ops_request. This is not necessary because mmc core always checks the card status before calling this operation. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the code BUG()'s, if host->mrq is set at the beginning of msdc_ops_request. This shoould normally not happen, but it is not that critical, because the critical sections are protected by a spin lock and in the worst case, some commands to the card are lost, so it is sufficient to just WARN_ON(). Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the code for the sdio irq is never used, because the flags for it (MSDC_(EXT_)SDIO_IRQ) are never set. So the whole code for it can be removed. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field abort of msdc_host is only set, but never read, so it can be removed. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the value that data->error is set to is converted to an unsigned int, but it is a usual error number, so it should be negative. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field dma_xfer of the struct msdc_host is not used anymore, remove it. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the driver is capable of DMA and non-DMA transfer. But the option to choose non-DMA transfer has already been removed. Now remove also the code for the non-DMA transfer. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The global variable dma_size was previously used to select DMA or non-DMA transfer mode based on the size of the data that should be transferred. This option was removed preivously, so the variable is not used any more and can be removed. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the transfer mode can be chosen between DMA, a size dependent mode and non-DMA by writing to a proc file. The upstream driver mtk-sd uses DMA all times. The previous patch removed the ability to set that option. Now the remaining uses of the transfer mode setting variable are cleaned up, because it cannot be changed any more. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently the transfer mode can be chosen between DMA, a size dependent mode and non-DMA by writing to a proc file. The upstream driver mtk-sd uses DMA all times. There is no apparent reason why somebody would like to change the transfer mode and the position of the setting in the debug part of the driver also indicates, that the option was used for debugging purposes. So it is removed to clean up the driver and bring it more in line with the upstream one. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The static variable msdc_regs is set once, but never used, so remove it. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently sdr_get_field is a macro, to bring the code in line with the upstream driver mtk-sd, it is changed to a function. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
Currently sdr_set_field is a macro, to bring the code in line with the upstream driver mtk-sd, it is changed to a function. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The function uffs that is implemented by this driver returns the same values as the kernel function ffs. So the uffs function is removed and the calls to it are replaced with calls to ffs. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The sdr_{read,write}16 macros are never used and does not provide any information about the device, so they are removed. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The macro msdc_init_gpd_ex is never used and does not provied any information about the hardware, so it is removed. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field clk_drv of msdc_hw is set to a constant and only used once, replace that position with the constant and remove the unused field. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field cmd_drv of msdc_hw is set to a constant and only used once, replace that position with the constant and remove the unused field. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field dat_drv of msdc_hw is set to a constant and only used once, replace that position with the constant and remove the unused field. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field data_edge of msdc_hw is set to a constant and only used once, replace that position with the constant and remove the unused field. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The field cmd_edge of msdc_hw is set to a constant and only used once, replace that position with the constant and remove the unused field. Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christian Lütke-Stetzkamp authored
The type pm_message does not exist in the kernel, the correct type is pm_message_t, so the type of the parameter is corrected. Fixes: 9673d9f6 ("staging: mt7621-mmc: Refactor suspend, resume") Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
Since there is no vchiq function listed by "make checkstack" anymore, we can remove the stack hog issue from the TODO. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
This removes an unnecessary break which has been reported by checkpatch.pl. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
This removing an unnecessary return which has been reported by checkpatch.pl. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
This fixes a whitespace issue reported by checkpatch: ERROR: code indent should use tabs where possible Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
The definition of USE_VCHIQ_ARM and VCOS_VERIFY_BKPTS isn't really necessary so remove them. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
The chance to mixup i and j is very high. So rename variable j to a more explaining one. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
In order to make the code easier to review, move the second abort criterion into the loop and the incrementation into a separate line. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
The kernel would like to have all stack VLA usage removed[1]. The array here is fixed (declared with a const variable) but it appears like a VLA to the compiler. Also, currently we are putting 768 bytes on the stack. This function is only called on the error path so performance is not critical, let's just allocate the memory instead of using the stack. This saves stack space and removes the VLA build warning. kmalloc a buffer for dumping state instead of using the stack. [1]: https://lkml.org/lkml/2018/3/7/621Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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